Cita APA (7a ed.)

Bahrt, C., & Hambidge, G. (1964). Hunger signs in crops: A symposium (3rd edition.). David McKay Company.

Cita Chicago Style (17a ed.)

Bahrt, C.M, y G. Hambidge. Hunger Signs in Crops: A Symposium. 3rd edition. New York: David McKay Company, 1964.

Cita MLA (8a ed.)

Bahrt, C.M, y G. Hambidge. Hunger Signs in Crops: A Symposium. 3rd edition. David McKay Company, 1964.