APA (7th ed.) Citation

Frenzel, L. E., Jr. (1975). 99 ways to know and use your electronic calculator. H. W. Sams.

Chicago Style (17th ed.) Citation

Frenzel, Louis E., Jr. 99 Ways to Know and Use Your Electronic Calculator. Indianapolis: H. W. Sams, 1975.

MLA (9th ed.) Citation

Frenzel, Louis E., Jr. 99 Ways to Know and Use Your Electronic Calculator. H. W. Sams, 1975.