Cita APA (7a ed.)

Yaglom, A. M., Yaglom, I. M., & McCawley, J. (1967). Challenging mathematical problems with elementary solutions (Primera edición.). Dover.

Cita Chicago Style (17a ed.)

Yaglom, A. M., I. M. Yaglom, y James McCawley. Challenging Mathematical Problems with Elementary Solutions. Primera edición. New York: Dover, 1967.

Cita MLA (9a ed.)

Yaglom, A. M., et al. Challenging Mathematical Problems with Elementary Solutions. Primera edición. Dover, 1967.