Cita APA

Gifford, E. M., & Foster, A. S. 1. (1987). Morphology and evolution of vascular plants (Third edition.). New York: W.H. Freeman and Company.

Citación estilo Chicago

Gifford, Ernest M., y Adriance S. 1901-1973 Foster. Morphology and Evolution of Vascular Plants. Third edition. New York: W.H. Freeman and Company, 1987.

Cita MLA

Gifford, Ernest M., y Adriance S. 1901-1973 Foster. Morphology and Evolution of Vascular Plants. Third edition. New York: W.H. Freeman and Company, 1987.