APA (7th ed.) Citation

Heady, E. O. 1. (1956). Resource productivity, returns to scale, and farm size. Iowa State College Press.

Chicago Style (17th ed.) Citation

Heady, Earl Orel 1915. Resource Productivity, Returns to Scale, and Farm Size. Ames: Iowa State College Press, 1956.

MLA (9th ed.) Citation

Heady, Earl Orel 1915. Resource Productivity, Returns to Scale, and Farm Size. Iowa State College Press, 1956.