APA (7th ed.) Citation

(1970). Government reference books: A biennial guide to U.S. government, publications. Libraries Unlimited.

Chicago Style (17th ed.) Citation

Government Reference Books: A Biennial Guide to U.S. Government, Publications. Littleton, Colo: Libraries Unlimited, 1970.

MLA (9th ed.) Citation

Government Reference Books: A Biennial Guide to U.S. Government, Publications. Libraries Unlimited, 1970.

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