APA (7th ed.) Citation

Hartung, M. L. (1960). How to use _ trig slide rules. Pickett.

Chicago Style (17th ed.) Citation

Hartung, Maurice L. How to Use _ Trig Slide Rules. Chicago: Pickett, 1960.

MLA (8th ed.) Citation

Hartung, Maurice L. How to Use _ Trig Slide Rules. Pickett, 1960.

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