HECKENBACH, A. J. (1970). Elementary Functions: An approach to precalculus mathematics. The Macmillan Company.
Chicago Style (17th ed.) CitationHECKENBACH, Alan J. Elementary Functions: An Approach to Precalculus Mathematics. The Macmillan Company, 1970.
MLA (8th ed.) CitationHECKENBACH, Alan J. Elementary Functions: An Approach to Precalculus Mathematics. The Macmillan Company, 1970.
Warning: These citations may not always be 100% accurate.