APA (7th ed.) Citation

Helmus, T. M. (1988). The United States yesterday and today. Silver Burdett & Ginn.

Chicago Style (17th ed.) Citation

Helmus, Timothy M. The United States Yesterday and Today. Lexington, MA: Silver Burdett & Ginn, 1988.

MLA (9th ed.) Citation

Helmus, Timothy M. The United States Yesterday and Today. Silver Burdett & Ginn, 1988.

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