Dyfyniad APA

Economic research service, USDA, Gibson, P., Wainio, J., Whitley, D., & Bohman, M. (2001). Profiles of tariffs in global agricultural markets: Agricultural economic report No 796.

Dyfyniad Arddull Chicago

Economic research service, USDA, Paul Gibson, John Wainio, Daniel Whitley, and M. Bohman. Profiles of Tariffs in Global Agricultural Markets: Agricultural Economic Report No 796. 2001.

Dyfyniad MLA

Economic research service, et al. Profiles of Tariffs in Global Agricultural Markets: Agricultural Economic Report No 796. 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.