Cita APA (7th ed.)

Tobey, J. (1998). Beginning algebra (4th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Tobey, John. Beginning Algebra. 4th ed. Upper Saddle River, New Jersey: Prentice Hall, 1998.

Cita MLA (9th ed.)

Tobey, John. Beginning Algebra. 4th ed. Prentice Hall, 1998.