APA (7th ed.) Citation

Elich, J., & Elich, C. J. (1980). Trigonometry using calculators. Addison-Wesley Pub. Co..

Chicago Style (17th ed.) Citation

Elich, Joseph, and Carletta J. Elich. Trigonometry Using Calculators. Reading, Mass.: Addison-Wesley Pub. Co., 1980.

MLA (9th ed.) Citation

Elich, Joseph, and Carletta J. Elich. Trigonometry Using Calculators. Addison-Wesley Pub. Co., 1980.

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