APA

International Conference of Agricultural Economists, International Association of Agricultural Economists, . (1956). Proceedings of the ninth International Conference of Agricultural Economists. new York: oxford university press.

Chicago

International Conference of Agricultural Economists, International Association of Agricultural Economists, . 1956. Proceedings of the ninth International Conference of Agricultural Economists. new York: oxford university press.

Harvard

International Conference of Agricultural Economists, International Association of Agricultural Economists, . (1956). Proceedings of the ninth International Conference of Agricultural Economists. new York: oxford university press.

MLA

International Conference of Agricultural Economists, International Association of Agricultural Economists, . Proceedings of the ninth International Conference of Agricultural Economists. new York: oxford university press. 1956.