Plant ecology of Porto Rico
H.A. Gleason and Mel T. Cook.
- New York New York Academy of Sciences 1927, 1926.
- 2v., [50] leaves of plates ill., maps 25 cm.
- Scientific survey of Porto Rico and the Virgin Islands / New York Academy of Sciences v.7, pt.1-2 .
- New York Academy of Sciences. Scientific survey of Porto Rico and the Virgin Islands v.7, pt.1-2. .