Heady, E. O. (1952). Economics of agricultural production and resource use. Prentice-Hall.
Cita Chicago (17th ed.)Heady, Earl O. Economics of Agricultural Production and Resource Use. Englewood Cliffs, N.J.: Prentice-Hall, 1952.
Cita MLA (9th ed.)Heady, Earl O. Economics of Agricultural Production and Resource Use. Prentice-Hall, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.