APA (7th ed.) Citation

Robbins, W. W. (1951). Weeds of California.

Chicago Style (17th ed.) Citation

Robbins, Wilfred William. Weeds of California. 1951.

MLA (9th ed.) Citation

Robbins, Wilfred William. Weeds of California. 1951.

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