APA (7th ed.) Citation

U. S. Library of Congress. Descriptive Cataloging Division. (1947). Rules for descriptive cataloging in the library of Congress (Prelim. ed.). U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. Descriptive Cataloging Division. Rules for Descriptive Cataloging in the Library of Congress. Prelim. ed. Washington: U.S. Govt. Print. Off, 1947.

MLA (9th ed.) Citation

U. S. Library of Congress. Descriptive Cataloging Division. Rules for Descriptive Cataloging in the Library of Congress. Prelim. ed. U.S. Govt. Print. Off, 1947.