APA (7e ed.) Bronvermelding

Não informado. (1951). Cooperative economic insect report. U.S. Department of Agriculture, Agricultural Research Service, Plant Protection Division.

Chicago (17e ed.) Bronvermelding

Não informado. Cooperative Economic Insect Report. Washington: U.S. Department of Agriculture, Agricultural Research Service, Plant Protection Division, 1951.

MLA (8e ed.) Bronvermelding

Não informado. Cooperative Economic Insect Report. U.S. Department of Agriculture, Agricultural Research Service, Plant Protection Division, 1951.

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