APA (7th ed.) Citation

Smith, L. B., & Ayensu, E. S. (1976). A revision of American Velloziaceae. Smithsonian Institution.

Chicago Style (17th ed.) Citation

Smith, Lyman B., and Edward S. Ayensu. A Revision of American Velloziaceae. Washington: Smithsonian Institution, 1976.

MLA (9th ed.) Citation

Smith, Lyman B., and Edward S. Ayensu. A Revision of American Velloziaceae. Smithsonian Institution, 1976.

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