APA (7th ed.) Citation
Heady, E. O. (1956). Resource productivity, returns to scale, and farm size (ed.). The Iowa state college Press.
Chicago Style (17th ed.) Citation
Heady, Earl O. Resource Productivity, Returns to Scale, and Farm Size. ed. Ames,Iowa: The Iowa state college Press, 1956.
MLA (9th ed.) Citation
Heady, Earl O. Resource Productivity, Returns to Scale, and Farm Size. ed. The Iowa state college Press, 1956.
Warning: These citations may not always be 100% accurate.