Cita APA (7a ed.)

Goff, G. K., & Berg, M. E. (1968). Basic mathematics: A programmed introduction. Appleton-Century-Crofts.

Cita Chicago Style (17a ed.)

Goff, Gerald K., y Milton Edward Berg. Basic Mathematics: A Programmed Introduction. New York: Appleton-Century-Crofts, 1968.

Cita MLA (9a ed.)

Goff, Gerald K., y Milton Edward Berg. Basic Mathematics: A Programmed Introduction. Appleton-Century-Crofts, 1968.