APA (7th ed.) Citation

Greulach, V. A. (1968). Botany made simple. Doubleday.

Chicago Style (17th ed.) Citation

Greulach, Victor A. Botany Made Simple. Garden City, New York: Doubleday, 1968.

MLA (9th ed.) Citation

Greulach, Victor A. Botany Made Simple. Doubleday, 1968.