APA (7th ed.) Citation

Field, A. M., Olson, R. W., & Nylin, V. E. (1928). Farm mechanics: A guide-book for students and farmers. Century.

Chicago Style (17th ed.) Citation

Field, Albert Martin, R. W. Olson, and Victor E. Nylin. Farm Mechanics: A Guide-book for Students and Farmers. New York, London: Century, 1928.

MLA (9th ed.) Citation

Field, Albert Martin, et al. Farm Mechanics: A Guide-book for Students and Farmers. Century, 1928.