Cita APA (7th ed.)

Erickson, M. J. (2009). Aha! Solutions. Mathematical Association of America.

Cita Chicago (17th ed.)

Erickson, Martin J. Aha! Solutions. [Washington, D.C.]: Mathematical Association of America, 2009.

Cita MLA (9th ed.)

Erickson, Martin J. Aha! Solutions. Mathematical Association of America, 2009.