Instituto Brasileiro de Informação em Ciência e Tecnologia

Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1971). Environment information access. Environmental Information Center of Ecology Forum.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Environment Information Access. New York: Environmental Information Center of Ecology Forum, 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Environment Information Access. Environmental Information Center of Ecology Forum, 1971.