Cita APA

Brien Gras, N. S. (1946). A history of agriculture in Europe and America (2a. ed.). New York: F.S. Crofts.

Citación estilo Chicago

Brien Gras, Norman Scott. A History of Agriculture in Europe and America. 2a. ed. New York: F.S. Crofts, 1946.

Cita MLA

Brien Gras, Norman Scott. A History of Agriculture in Europe and America. 2a. ed. New York: F.S. Crofts, 1946.