United States. Library of Congress Subject Cataloging Division. (1979). Classification. Class B, Subclasses B-BJ: Philosophy, Psychology (3rd ed.). The Library.
Citazione stile Chigago Style (17a edizione)United States. Library of Congress Subject Cataloging Division. Classification. Class B, Subclasses B-BJ: Philosophy, Psychology. 3rd ed. Washington: The Library, 1979.
Citatione MLA (9a ed.)United States. Library of Congress Subject Cataloging Division. Classification. Class B, Subclasses B-BJ: Philosophy, Psychology. 3rd ed. The Library, 1979.
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