Larson, R. E., Hostetler, R. P., & Edwards, B. H. (1994). Precalculus: Functions and graphs : a graphing approach. D.C. Heath.
Chicago Style (17th ed.) CitationLarson, Roland E., Robert P. Hostetler, and Bruce H. Edwards. Precalculus: Functions and Graphs : A Graphing Approach. Lexington, Mass: D.C. Heath, 1994.
MLA (9th ed.) CitationLarson, Roland E., et al. Precalculus: Functions and Graphs : A Graphing Approach. D.C. Heath, 1994.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.