APA (7th ed.) Citation

Cronquist, A. (1971). Introductory botany (2. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Cronquist, Arthur. Introductory Botany. 2. ed. New York: Harper & Row, 1971.

MLA (9th ed.) Citation

Cronquist, Arthur. Introductory Botany. 2. ed. Harper & Row, 1971.