Economic plants of Porto Rico Cook, O. F. (Orator Fuller), 1867-1949 creator Collins, G. N. (Guy N.), 1872-1938 contributor text book Washington Govt. Print Off 1903 1903
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ENG Botany Botany, Economic Puerto Rico QK1 .U5 vol. 8, pt. 2 Smithsonian Institution. United States National Museum. Contributions from the United States National Herbarium, vol. VIII, pt. 2 https://www.biodiversitylibrary.org/bibliography/63535 6859537 agr06000879 10.5962/bhl.title.63535 DLC