APA (7th ed.) Citation

Beer, K. E. The USA answers A guide to understanding. US and World Publ.

Chicago Style (17th ed.) Citation

Beer, Kenneth E. The USA Answers A Guide to Understanding. US and World Publ.

MLA (8th ed.) Citation

Beer, Kenneth E. The USA Answers A Guide to Understanding. US and World Publ.

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