Cita APA (7th ed.)

Gay, D. (1992). Solving problems using elementary mathematics. Dellen.

Cita Chicago (17th ed.)

Gay, David. Solving Problems Using Elementary Mathematics. Riverside, NJ: Dellen, 1992.

Cita MLA (9th ed.)

Gay, David. Solving Problems Using Elementary Mathematics. Dellen, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.