APA (7th ed.) Citation

(1969). Numerical control / [by] Glenn G. Ertell.

Chicago Style (17th ed.) Citation

Numerical Control / [by] Glenn G. Ertell. 1969.

MLA (9th ed.) Citation

Numerical Control / [by] Glenn G. Ertell. 1969.

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