SPITZBART, A. (1955). College algebra and plane trigonometry - Abraham Spitzbart, Roos H Bardeli. Addison-Wesley Publishing Copmpany.
Chicago-viite (17. p.)SPITZBART, Abraham. College Algebra and Plane Trigonometry - Abraham Spitzbart, Roos H Bardeli. Addison-Wesley Publishing Copmpany, 1955.
MLA-viite (8. p.)SPITZBART, Abraham. College Algebra and Plane Trigonometry - Abraham Spitzbart, Roos H Bardeli. Addison-Wesley Publishing Copmpany, 1955.
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