Cita APA (7a ed.)
Barbeau, E., Klamkin, M. S., & Moser, W. O. J. (1995). Five hundred mathematical challenges. Mathematical Association of America.
Cita Chicago Style (17a ed.)
Barbeau, Edward, Murray S. Klamkin, y W. O. J. Moser. Five Hundred Mathematical Challenges. [Washington, D.C.]: Mathematical Association of America, 1995.
Cita MLA (9a ed.)
Barbeau, Edward, et al. Five Hundred Mathematical Challenges. Mathematical Association of America, 1995.
Precaución: Estas citas no son 100% exactas.