APA (7th ed.) Citation

Foster, A. S., & Gifford, E. M. (1959). Comparative morphology of vascular plants. W. H. Freeman.

Chicago Style (17th ed.) Citation

Foster, Adriance S., and Ernest M. Gifford. Comparative Morphology of Vascular Plants. San Francisco: W. H. Freeman, 1959.

MLA (9th ed.) Citation

Foster, Adriance S., and Ernest M. Gifford. Comparative Morphology of Vascular Plants. W. H. Freeman, 1959.