APA Edition Citation

Heckenbach, A. J., & Kegley, J. C. (1970). Elementary functions: Approach to precalculus mathematics ed by Carl B Allendoerfer.

Chicago Edition Citation

Heckenbach, Alan J., and J. Colby Kegley. Elementary Functions: Approach to Precalculus Mathematics Ed by Carl B Allendoerfer. 1970.

MLA Edition Citation

Heckenbach, Alan J., and J. Colby Kegley. Elementary Functions: Approach to Precalculus Mathematics Ed by Carl B Allendoerfer. 1970.

Warning: These citations may not always be 100% accurate.