Instituto Brasileiro de Informação em Ciência e Tecnologia

Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1971). Euro abstracts. Commission of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Euro Abstracts. Luxembourg: Commission of the European Communities, 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Euro Abstracts. Commission of the European Communities, 1971.