APA (7e ed.) Bronvermelding

Não informado. (1970). Extension news. Virginia Polytechnic Institute and State University.

Chicago (17e ed.) Bronvermelding

Não informado. Extension News. Blacksburg, Va: Virginia Polytechnic Institute and State University, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Extension News. Virginia Polytechnic Institute and State University, 1970.

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