German Library of Information, New York. (1940). German Library of Information: A clearing house of knowledge. German Library of Information.
Παραπομπή σε μορφή Chicago (17η εκδ.)German Library of Information, New York. German Library of Information: A Clearing House of Knowledge. New York: German Library of Information, 1940.
Παραπομπή σε μορφή MLA (9th εκδ.)German Library of Information, New York. German Library of Information: A Clearing House of Knowledge. German Library of Information, 1940.
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