APA (7th ed.) Citation

U. S. Library of Congress. General Reference and Bibliography Division & Conover, H. F. (1955). Current national bibliographies. s.n.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. General Reference and Bibliography Division and Helen Field Conover. Current National Bibliographies. Washington: s.n, 1955.

MLA (9th ed.) Citation

U. S. Library of Congress. General Reference and Bibliography Division and Helen Field Conover. Current National Bibliographies. s.n, 1955.