Cita APA (7a ed.)
Ivanov, O. A., & Burns, R. G. (1999). Easy as [pi?]: An introduction to higher mathematics. Springer.
Cita Chicago Style (17a ed.)
Ivanov, O. A., y Robert G. Burns. Easy as [pi?]: An Introduction to Higher Mathematics. New York: Springer, 1999.
Cita MLA (9a ed.)
Ivanov, O. A., y Robert G. Burns. Easy as [pi?]: An Introduction to Higher Mathematics. Springer, 1999.
Precaución: Estas citas no son 100% exactas.