APA Citatie

Spooner, G., & Mentzer, R. (1968). Introduction to number system. Prentice Hall.

Chicago Style citaat

Spooner, G.A, en R.L Mentzer. Introduction to Number System. New Jersey: Prentice Hall, 1968.

MLA citatie

Spooner, G.A, en R.L Mentzer. Introduction to Number System. Prentice Hall, 1968.