APA (7th ed.) Citation

Fergus, E. N., Hammonds, C., & Gregory, R. W. (1942). Field crops management. J.B. Lippincott company.

Chicago Style (17th ed.) Citation

Fergus, Ernest Newton, Carsie Hammonds, and R. W. Gregory. Field Crops Management. Philadelphia, New York [etc.]: J.B. Lippincott company, 1942.

MLA (9th ed.) Citation

Fergus, Ernest Newton, et al. Field Crops Management. J.B. Lippincott company, 1942.