APA (7e ed.) Bronvermelding

Não informado. (2012). Purdue Agriculture Reports. Purdue University, Agricultural Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Purdue Agriculture Reports. West Lafayette, Ind: Purdue University, Agricultural Experiment Station, 2012.

MLA (8e ed.) Bronvermelding

Não informado. Purdue Agriculture Reports. Purdue University, Agricultural Experiment Station, 2012.

Let op: Deze citaties zijn niet altijd 100% accuraat.