APA (7th ed.) Citation

(1919). Studies of tropical American phanerogams, No. 3. GPO.

Chicago Style (17th ed.) Citation

Studies of Tropical American Phanerogams, No. 3. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

Studies of Tropical American Phanerogams, No. 3. GPO, 1919.

Warning: These citations may not always be 100% accurate.