Cita APA (7a ed.)

Foster, A., & Glfford, E. (1959). Comparative morphology of vascular plants. Freeman and Company.

Cita Chicago Style (17a ed.)

Foster, Adriance, y Ernest Glfford. Comparative Morphology of Vascular Plants. California: Freeman and Company, 1959.

Cita MLA (8a ed.)

Foster, Adriance, y Ernest Glfford. Comparative Morphology of Vascular Plants. Freeman and Company, 1959.