Cita APA (7a ed.)

Freund, J. E. (1956). A modern introduction to mathematics. Prentice-Hall.

Cita Chicago Style (17a ed.)

Freund, John E. A Modern Introduction to Mathematics. Englewood Cliffs, N. J: Prentice-Hall, 1956.

Cita MLA (9a ed.)

Freund, John E. A Modern Introduction to Mathematics. Prentice-Hall, 1956.