APA (7th ed.) Citation

Spencer Foundation, Indiana University, Bloomington, Lester, F. K., & Garofalo, J. (1982). Mathematical problem solving: Issues in research. Franklin Institute Press.

Chicago Style (17th ed.) Citation

Spencer Foundation, Bloomington Indiana University, Frank K. Lester, and Joe Garofalo. Mathematical Problem Solving: Issues in Research. Philadelphia, Pa: Franklin Institute Press, 1982.

MLA (9th ed.) Citation

Spencer Foundation, et al. Mathematical Problem Solving: Issues in Research. Franklin Institute Press, 1982.