APA (7th ed.) Citation

Library of Congress. (1943). Puerto Rico, selected list of recent references. [s.n.].

Chicago Style (17th ed.) Citation

Library of Congress. Puerto Rico, Selected List of Recent References. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

Library of Congress. Puerto Rico, Selected List of Recent References. [s.n.], 1943.