APA (7th ed.) Citation

Library of Congress. (1943). Panama Canal and Panama Canal Zone, selected list of references. [s.n.].

Chicago Style (17th ed.) Citation

Library of Congress. Panama Canal and Panama Canal Zone, Selected List of References. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

Library of Congress. Panama Canal and Panama Canal Zone, Selected List of References. [s.n.], 1943.