Masingila, J. O., Lester, F. K., & Raymond, A. M. (2002). Mathematics for elementary teachers via problem solving: Student activity manual. Prentice Hall.
Chicago Style aipamenaMasingila, Joanna O., Frank K. Lester, and Anne Miller Raymond. Mathematics for Elementary Teachers via Problem Solving: Student Activity Manual. Upper Saddle River, N.J: Prentice Hall, 2002.
MLA aipamenaMasingila, Joanna O., et al. Mathematics for Elementary Teachers via Problem Solving: Student Activity Manual. Prentice Hall, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.