APA (7th ed.) Citation

(1963). Flora of Guatemala: Paul C. Standley .. Natural History Museum.

Chicago Style (17th ed.) Citation

Flora of Guatemala: Paul C. Standley .. Chicago: Natural History Museum, 1963.

MLA (9th ed.) Citation

Flora of Guatemala: Paul C. Standley .. Natural History Museum, 1963.

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