Cita APA (7th ed.)

Gustafson, R., & Frisk, P. D. (1996). Beginning and intermediate algebra: An integrated approach. Brooks/Cole.

Cita Chicago (17th ed.)

Gustafson, R.David, i Peter D. Frisk. Beginning and Intermediate Algebra: An Integrated Approach. Pacific Grove: Brooks/Cole, 1996.

Cita MLA (9th ed.)

Gustafson, R.David, i Peter D. Frisk. Beginning and Intermediate Algebra: An Integrated Approach. Brooks/Cole, 1996.