Cita APA (7th ed.)

Childs, J. J. (1965). Principles of numerical control. Industrial Press.

Cita Chicago (17th ed.)

Childs, James J. Principles of Numerical Control. Nueva York: Industrial Press, 1965.

Cita MLA (9th ed.)

Childs, James J. Principles of Numerical Control. Industrial Press, 1965.