APA (7th ed.) Citation

Hodges, R. J., Metzer, R. B., & Petr, F. C. (1970). Keys to profitable soybean production. Texas Agricultural Extension Service.

Chicago Style (17th ed.) Citation

Hodges, R. J., Robert B. Metzer, and Frank C. Petr. Keys to Profitable Soybean Production. College Station, Texas: Texas Agricultural Extension Service, 1970.

MLA (9th ed.) Citation

Hodges, R. J., et al. Keys to Profitable Soybean Production. Texas Agricultural Extension Service, 1970.