Cita APA (7th ed.)

Brunner, E. d. S., Sanders, I. T., & Ensminger, D. (1945). Farmers of the world: The development of agricultural extension. Columbia University Press.

Cita Chicago (17th ed.)

Brunner, Edmund de Schweinitz, Irwin Taylor Sanders, i Douglas Ensminger. Farmers of the World: The Development of Agricultural Extension. New York,: Columbia University Press, 1945.

Cita MLA (8th ed.)

Brunner, Edmund de Schweinitz, et al. Farmers of the World: The Development of Agricultural Extension. Columbia University Press, 1945.