APA (7th ed.) Citation

Frenkel, R. E. (1970). Ruderal vegetation along some California roadside s. University of California Press.

Chicago Style (17th ed.) Citation

Frenkel, Robert E. Ruderal Vegetation Along Some California Roadside S. Berkeley: University of California Press, 1970.

MLA (9th ed.) Citation

Frenkel, Robert E. Ruderal Vegetation Along Some California Roadside S. University of California Press, 1970.