1.
Interactive Elementary Algegra
by Alwin, Robert H., Hackworth...
ISBN: 9780943202624
List Price: $45.95
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Interactive Intermediate Algebra
by Alwin, Robert H., Hackworth...
ISBN: 9780943202648
List Price: $51.95
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Introductory College Mathematics: Algebra Two - Robert D. Hackworth - Paperback
by Hackworth, Robert D., Howla...
ISBN: 9780721644158
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Interactive Beginning Algebra
by Alwin, Robert H., Hackworth...
ISBN: 9780943202631
List Price: $45.95
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College Algebra and Trigonometry As Socrates Might Have Taught Them
by Hackworth, Robert D., Howla...
ISBN: 9780943202013
List Price: $14.95
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Introductory College Mathematics : Real Number System
by Hackworth, Robert D., Howla...
ISBN: 9780721644257
List Price: $2.95
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Introductory College Mathematics: Statistics
by Hackworth, Robert D., Howla...
ISBN: 9780721644189
List Price: $10.95
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Introductory College Mathematics: Computers
by Hackworth, Robert D., Howla...
ISBN: 9780721644240
List Price: $2.95
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Programmed Arithmetic - Robert D. Hackworth - Paperback
by Hackworth, Robert D., Howla...
ISBN: 9780943202082
List Price: $21.95
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Algebra Programmed, Vol. 3 - Robert H. Alwin - Paperback
by Alwin, Robert H., Hackworth...
ISBN: 9780130219312
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Algebra Programmed, Vol. 2 - Robert H. Alwin - Paperback
by Alwin, Robert H., Hackworth...
ISBN: 9780130220202