APA aipamena

Yocum, L. E. (1937). Visual outline of botany. Longmans, Green and Co..

Chicago Style aipamena

Yocum, L. Edwin. Visual Outline of Botany. New York : Toronto: Longmans, Green and Co., 1937.

MLA aipamena

Yocum, L. Edwin. Visual Outline of Botany. Longmans, Green and Co., 1937.