APA (7th ed.) Citation

Zhan, Y., Heady, E. O., & Sonka, S. T. (1976). Farm size and cost functions in relation to machinery technology in north central Iowa. Center for Agricultural and Rural Development, Iowa State University.

Chicago Style (17th ed.) Citation

Zhan, Yilang, Earl O. Heady, and Steven T. Sonka. Farm Size and Cost Functions in Relation to Machinery Technology in North Central Iowa. Ames: Center for Agricultural and Rural Development, Iowa State University, 1976.

MLA (9th ed.) Citation

Zhan, Yilang, et al. Farm Size and Cost Functions in Relation to Machinery Technology in North Central Iowa. Center for Agricultural and Rural Development, Iowa State University, 1976.