American fern journal - American Fern Society. (American Fern Society, 1978)

American fern journal - American Fern Society. (American Fern Society, 1981)

American fern journal - American Fern Society. (American Fern Society, 1982)

American fern journal - American Fern Society. (American Fern Society, 1987)

American fern journal - American Fern Society. (American Fern Society, 1989)

American fern journal - American Fern Society. (American Fern Society, 1990)

American fern journal - American Fern Society. (American Fern Society, 1992)

American fern journal - American Fern Society. (American Fern Society, 1994)

American fern journal - American Fern Society. (American Fern Society, 1995)

American fern journal - American Fern Society. (American Fern Society, 1996)

American fern journal - American Fern Society. (American Fern Society, 1998)

American fern journal - American Fern Society. (American Fern Society, 1999)

American fern journal - American Fern Society. (American Fern Society, 2000)

American fern journal - American Fern Society. (American Fern Society, 2001)

American fern journal - American Fern Society. (American Fern Society, 2002)

American fern journal - American Fern Society. (American Fern Society, 2003)

American fern journal - American Fern Society. (American Fern Society, 2005)

American fern journal - American Fern Society. (American Fern Society, 2006)

American fern journal - American Fern Society. (American Fern Society, 2007)

American fern journal - American Fern Society. (American Fern Society, 2008)

American fern journal - American Fern Society. (American Fern Society, 2012)

American fern journal - American Fern Society. (American Fern Society, 2013)

American fern journal - American Fern Society. (American Fern Society, 2014)

American fern journal - American Fern Society. (American Fern Society, 2015)

American fern journal - American Fern Society. (American Fern Society, 2016)

American fern journal - American Fern Society. (American Fern Society, 2017)

American fern journal - American Fern Society. (American Fern Society, 2018)

American fern journal - American Fern Society. (American Fern Society, 2019)

American fern journal - American Fern Society. (American Fern Society, 2020)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1843)

American medicinal plants; : an illustrated and descriptive guide to the American plants used as homopathic remedies : their history, preparation, chemistry, and physiological effects - Millspaugh, Charles Frederick, 1854 -1923 (Boericke & Tafel, 1887)

American medicinal plants; an illustrated and descriptive guide to the American plants used as homopathic remedies: their history, preparation, chemistry and physiological effects - Millspaugh, Charles Frederick, 1854 -1923 (Boericke & Tafel, 1887)

American men of science; a biographical directory - Cattell, James McKeen, 1860 -1944 (Science Press, 1906)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1911)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1921)

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The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1894)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1896)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1897)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1904)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1908)

Amtlicher Bericht über die Versammlung Deutscher Naturforscher und Aerzte - Gesellschaft Deutscher Naturforscher und Ärzte. (1844)

an hui jing ji zhi wu zhi 安徽经济植物志 - Anhui sheng ye sheng zhi wu zong he li yong wei yuan hui bian安徽省野生植物综合利用委员会编 (an hui sheng ye sheng zhi wu zong he li yong wei yuan hui安徽省野生植物综合利用委员会, 1960)

an hui jing ji zhi wu zhi 安徽经济植物志 - Anhui jing ji zhi wu zhi zeng xiu bian xie ban gong shi an hui sheng ren min zheng fu jing ji wen安徽经济植物志增修编写办公室, 安徽省人民政府经济文 (an hui ke xue ji shu chu ban she安徽科学技术出版社, 1990)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1972)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1975)

Anales de la Universidad Central del Ecuador - Universidad Central del Ecuador. (Imp. de la Universidad Central, 1895)

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Anales del Museo de Historia Natural de Valparaiso - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Ministerio de Educación, Dirección de Bibliotecas, Archivos y Museos [etc.], 1974)

Anales del Museo de Historia Natural de Valparaiso - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Ministerio de Educación, Dirección de Bibliotecas, Archivos y Museos [etc.], 1980)

An analysis of the British ferns and their allies - Henfrey, Arthur, 1819 -1859 (1855)

An analysis of the British ferns and their allies - Francis, George William, 1800 -1865 (Simpkin, Marshall, 1837)

An analysis of the British ferns and their allies - Francis, George William, 1800 -1865 (Simpkin, Marshall, and co, 1842)