APA (7th ed.) Citation

(1956). American labor union periodicals, a guide to their location. Cornell.

Chicago Style (17th ed.) Citation

American Labor Union Periodicals, a Guide to Their Location. Ithaca, NY: Cornell, 1956.

MLA (9th ed.) Citation

American Labor Union Periodicals, a Guide to Their Location. Cornell, 1956.

Warning: These citations may not always be 100% accurate.