Não informado. (2012). Purdue Agricultures Magazine. Purdue University, College of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Purdue Agricultures Magazine. West Lafayette, Ind: Purdue University, College of Agriculture, 2012.
Style de citation MLA (8e éd.)Não informado. Purdue Agricultures Magazine. Purdue University, College of Agriculture, 2012.
Attention : ces citations peuvent ne pas être correctes à 100%.