APA (7th ed.) Citation

BEER, K. E. The U.S.A. Answers A Guide to Uderstanding. U.S. and World Publications, Inc.

Chicago Style (17th ed.) Citation

BEER, Kenneth E. The U.S.A. Answers A Guide to Uderstanding. U.S. and World Publications, Inc.

MLA (8th ed.) Citation

BEER, Kenneth E. The U.S.A. Answers A Guide to Uderstanding. U.S. and World Publications, Inc.

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