Cita APA (7a ed.)
Heady, E. O. (1956). Resource productivity, returns to scale, and farm size (ed.). The Iowa state college Press.
Cita Chicago Style (17a ed.)
Heady, Earl O. Resource Productivity, Returns to Scale, and Farm Size. ed. Ames,Iowa: The Iowa state college Press, 1956.
Cita MLA (9a ed.)
Heady, Earl O. Resource Productivity, Returns to Scale, and Farm Size. ed. The Iowa state college Press, 1956.
Precaución: Estas citas no son 100% exactas.