Cita APA (7th ed.)

Goldin, G. A., & McClintock, E. (1980). Task variables in mathematical problem solving. ERIC Clearinghouse for Science.

Cita Chicago (17th ed.)

Goldin, Gerald A., i Edwin McClintock. Task Variables in Mathematical Problem Solving. Columbus: ERIC Clearinghouse for Science, 1980.

Cita MLA (9th ed.)

Goldin, Gerald A., i Edwin McClintock. Task Variables in Mathematical Problem Solving. ERIC Clearinghouse for Science, 1980.