Cita APA (7th ed.)

Blackwelder, R. E. (1967). Taxonomy: A text and reference book. Wiley.

Cita Chicago (17th ed.)

Blackwelder, Richard E. Taxonomy: A Text and Reference Book. New York: Wiley, 1967.

Cita MLA (9th ed.)

Blackwelder, Richard E. Taxonomy: A Text and Reference Book. Wiley, 1967.