Cita APA (7a ed.)

Johnson, A. M. (1931). Taxonomy of the flowering plants. Century.

Cita Chicago Style (17a ed.)

Johnson, Arthur Monrad. Taxonomy of the Flowering Plants. New York: Century, 1931.

Cita MLA (8a ed.)

Johnson, Arthur Monrad. Taxonomy of the Flowering Plants. Century, 1931.