APA Citation

Foster, A. S. 1., & Gifford, E. M. 1. (1974). Comparative morphology of vascular plants (2. edition.). San Francisco, Calif.: W.H. Freeman.

Chicago Style Citation

Foster, Adriance Sherwood 1901-1973, and Ernest M. 1920-2006 Gifford. Comparative Morphology of Vascular Plants. 2. edition. San Francisco, Calif.: W.H. Freeman, 1974.

MLA Citation

Foster, Adriance Sherwood 1901-1973, and Ernest M. 1920-2006 Gifford. Comparative Morphology of Vascular Plants. 2. edition. San Francisco, Calif.: W.H. Freeman, 1974.

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