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