SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2006)

A sixth summary of the Verbenaceae, Avicenniaceae, Stilbaceae, Chloanthaceae, Symphoremaceae, Nyctanthaceae, and Eriocaulaceae of the world as to valid taxa, geographic distribution and synonymy - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.N. Moldenke and A.L. Moldenke, 1980)

The small grains - Carleton, Mark Alfred, 1866 -1925 (The Macmillan company, 1916)

Small mammals of Sangay National Park, Chimborazo Province and Morona Santiago Province, Ecuador - Lee, Thomas Emmett Jr. 1959 - (Museum of Texas Tech Universit, 2011)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1973)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1980)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1981)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1984)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1985)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1987)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1989)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1988)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1990)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1993)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1998)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1997)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2001)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2009)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2011)