APA (7th ed.) Citation

Johnson, M. A. (1939). Structure of the shoot apex in Zamia ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Johnson, Marion A. Structure of the Shoot Apex in Zamia. [Sonderdr.]. 1939.

MLA (9th ed.) Citation

Johnson, Marion A. Structure of the Shoot Apex in Zamia. [Sonderdr.]. 1939.

Warning: These citations may not always be 100% accurate.