APA (7e ed.) Bronvermelding

Schimmel, A., & Endres, F. C. (1993). The mystery of numbers. Oxford University Press.

Chicago (17e ed.) Bronvermelding

Schimmel, Annemarie, en Franz Carl Endres. The Mystery of Numbers. New York: Oxford University Press, 1993.

MLA (9e ed.) Bronvermelding

Schimmel, Annemarie, en Franz Carl Endres. The Mystery of Numbers. Oxford University Press, 1993.