Barbeau, E., Klamkin, M. S., & Moser, W. O. J. (1995). Five hundred mathematical challenges. Mathematical Association of America.
Chicago (17e ed.) BronvermeldingBarbeau, Edward, Murray S. Klamkin, en W. O. J. Moser. Five Hundred Mathematical Challenges. [Washington, D.C.]: Mathematical Association of America, 1995.
MLA (9e ed.) BronvermeldingBarbeau, Edward, et al. Five Hundred Mathematical Challenges. Mathematical Association of America, 1995.
Let op: Deze citaties zijn niet altijd 100% accuraat.