APA (7th ed.) Citation

Stephens, H. A. (1980). Poisonous plants of the central United States. Regents Press of Kansas.

Chicago Style (17th ed.) Citation

Stephens, H. A. Poisonous Plants of the Central United States. Lawrence: Regents Press of Kansas, 1980.

MLA (9th ed.) Citation

Stephens, H. A. Poisonous Plants of the Central United States. Regents Press of Kansas, 1980.

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