APA Style

Congreses, P, I, A, O, N. (1963). Report of Proceedings of the XXth Congress 1961 . Baltimore: Permanent International Association of Navigation Congreses.

MLA Style

Congreses, Permanent, International, Association, Of, Navigation. "Report of Proceedings of the XXth Congress 1961". Baltimore: Permanent International Association of Navigation Congreses, 1963. Text.