APA

(1955). Botany: Principles and Problems. New York: McGraw-Hill Book Company, Inc.

Chicago

1955. Botany: Principles and Problems. New York: McGraw-Hill Book Company, Inc.

Harvard

(1955). Botany: Principles and Problems. New York: McGraw-Hill Book Company, Inc.

MLA

Botany: Principles and Problems. New York: McGraw-Hill Book Company, Inc. 1955.