APA (7th ed.) Citation

(1926). Hevea rubber tree in Amazon Valley. GPO.

Chicago Style (17th ed.) Citation

Hevea Rubber Tree in Amazon Valley. [Washington]: GPO, 1926.

MLA (9th ed.) Citation

Hevea Rubber Tree in Amazon Valley. GPO, 1926.

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