APA (7e ed.) Bronvermelding

Não informado. (1970). ISLA: Information Services on Latin America. Information Services in Latin American.

Chicago (17e ed.) Bronvermelding

Não informado. ISLA: Information Services on Latin America. Oakland, Calif: Information Services in Latin American, 1970.

MLA (8e ed.) Bronvermelding

Não informado. ISLA: Information Services on Latin America. Information Services in Latin American, 1970.

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