Cita APA (7a ed.)

Smithsonian Institution & Knapp, W. M. (1969). Smithsonian Contributions to Botany. Smithsonian Scholarly Press.

Cita Chicago Style (17a ed.)

Smithsonian Institution y Wesley M. Knapp. Smithsonian Contributions to Botany. USA: Smithsonian Scholarly Press, 1969.

Cita MLA (8a ed.)

Smithsonian Institution y Wesley M. Knapp. Smithsonian Contributions to Botany. Smithsonian Scholarly Press, 1969.