Oregon Wheat Growers League. (1971). Oregon wheat. Oregon Wheat Growers League.
Cita Chicago Style (17a ed.)Oregon Wheat Growers League. Oregon Wheat. Pendleton, Or.: Oregon Wheat Growers League, 1971.
Cita MLA (8a ed.)Oregon Wheat Growers League. Oregon Wheat. Oregon Wheat Growers League, 1971.
Precaución: Estas citas no son 100% exactas.