Cita APA (7a ed.)

Helmberger, P. G., & Chavas, J. P. (1996). The Economics of agricultural prices (1st edition.). Prentice Hall.

Cita Chicago Style (17a ed.)

Helmberger, Peter G., y Jean Paul Chavas. The Economics of Agricultural Prices. 1st edition. [Lugar de publicación no identificado]: Prentice Hall, 1996.

Cita MLA (8a ed.)

Helmberger, Peter G., y Jean Paul Chavas. The Economics of Agricultural Prices. 1st edition. Prentice Hall, 1996.