Cites del registre

Cita APA (7th ed.)
Salkind, C. T., & Earl, J. M. (1973). The contest problem book. Mathematical Association of America.
Cita Chicago (17th ed.)
Salkind, Charles T., i James M. Earl. The Contest Problem Book. Washington, D.C.: Mathematical Association of America, 1973.
Cita MLA (9th ed.)
Salkind, Charles T., i James M. Earl. The Contest Problem Book. Mathematical Association of America, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.