APA-viite (7. p.)
Hungerford, T. W. (1994). Contemporary precalculus: A graphing approach. Sanders College Publlishing.
Chicago-viite (17. p.)
Hungerford, Thomas W. Contemporary Precalculus: A Graphing Approach. Philadelphia: Sanders College Publlishing, 1994.
MLA-viite (9. p.)
Hungerford, Thomas W. Contemporary Precalculus: A Graphing Approach. Sanders College Publlishing, 1994.
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