APA (7th ed.) Citation

North Central Farm Management Research Committee, Heady, E. O., Johnson, G. L., & Hardin, L. S. (1956). Resource productivity, returns to scale and farm size. Iowa State College Press.

Chicago Style (17th ed.) Citation

North Central Farm Management Research Committee, Earl O. Heady, Glenn Leroy Johnson, and Lowell S. Hardin. Resource Productivity, Returns to Scale and Farm Size. Ames, Iowa, U..A.: Iowa State College Press, 1956.

MLA (8th ed.) Citation

North Central Farm Management Research Committee, et al. Resource Productivity, Returns to Scale and Farm Size. Iowa State College Press, 1956.