Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Foster, Adriance S., Ernest M. Gifford, y Evan L. Gillespie. Comparative Morphology of Vascular Plants. San Francisco [etc.]: W. H. Freeman, 1959.

Cita MLA (9a ed.)

Foster, Adriance S., et al. Comparative Morphology of Vascular Plants. W. H. Freeman, 1959.