Weisstein, E. W. (1999). CRC concise Encyclopedia of Mathematics. CRC Press.
Chicago Edition CitationWeisstein, Eric W. CRC Concise Encyclopedia of Mathematics. Boca Raton: CRC Press, 1999.
Cita MLAWeisstein, Eric W. CRC Concise Encyclopedia of Mathematics. CRC Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.