APA (7e ed.) Bronvermelding

Não informado. (1930). Philippine Journal of Agriculture. Bureau of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Philippine Journal of Agriculture. Manila: Bureau of Agriculture, 1930.

MLA (8e ed.) Bronvermelding

Não informado. Philippine Journal of Agriculture. Bureau of Agriculture, 1930.

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