U.S. Library of Congress. international Organizations Section & Murra, K. G. (1962). International scientific organizations; a guide to their library, documentation, and information services, prepared under the direction of Katherine O Murra. General Reference and Bibliography Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)U.S. Library of Congress. international Organizations Section και Katherine Goveia Murra. International Scientific Organizations; a Guide to Their Library, Documentation, and Information Services, Prepared Under the Direction of Katherine O Murra. Washington, [for sale by the Superintendent of Documents: General Reference and Bibliography Division, 1962.
Παραπομπή σε μορφή MLA (9th εκδ.)U.S. Library of Congress. international Organizations Section και Katherine Goveia Murra. International Scientific Organizations; a Guide to Their Library, Documentation, and Information Services, Prepared Under the Direction of Katherine O Murra. General Reference and Bibliography Division, 1962.