Cita APA (7a ed.)

Loomis, W. E., & Shull, C. A. (1937). Methods in plant physiology: A laboratory manual and research handbook. McGraw-Hill.

Cita Chicago Style (17a ed.)

Loomis, Walter E., y Charles A. Shull. Methods in Plant Physiology: A Laboratory Manual and Research Handbook. New York: McGraw-Hill, 1937.

Cita MLA (8a ed.)

Loomis, Walter E., y Charles A. Shull. Methods in Plant Physiology: A Laboratory Manual and Research Handbook. McGraw-Hill, 1937.