Cita APA (7th ed.)

Zittel, R. J. (1982). Quick pre-algebra. [name of publication not identified].

Cita Chicago (17th ed.)

Zittel, Robert J. Quick Pre-algebra. [place of publication not identified: [name of publication not identified], 1982.

Cita MLA (9th ed.)

Zittel, Robert J. Quick Pre-algebra. [name of publication not identified], 1982.