Citação norma APA

United Nations. (1972). Catalogue of periodicals, annuals and special series currently received at the United Nations Library. s.n.

Citação norma Chicago

United Nations. Catalogue of Periodicals, Annuals and Special Series Currently Received at the United Nations Library. Geneva: s.n, 1972.

Citação norma MLA

United Nations. Catalogue of Periodicals, Annuals and Special Series Currently Received at the United Nations Library. s.n, 1972.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.