Forster, G. W., & Leager, M. C. (1950). Elements of agricultural economics. Prentice-Hall.
Citação do estilo Chicago (17ª ed.)Forster, Garnet Wolsey, e Marc Carl Leager. Elements of Agricultural Economics. New York: Prentice-Hall, 1950.
Citação MLA (9ª ed.)Forster, Garnet Wolsey, e Marc Carl Leager. Elements of Agricultural Economics. Prentice-Hall, 1950.