Cita APA (7a ed.)

Cadwell, J. H. (1966). Topics in recreational mathematics. Cambridge University Press.

Cita Chicago Style (17a ed.)

Cadwell, J. H. Topics in Recreational Mathematics. London: Cambridge University Press, 1966.

Cita MLA (8a ed.)

Cadwell, J. H. Topics in Recreational Mathematics. Cambridge University Press, 1966.