Melzak, Z.A.
Invitation to geometry
John Wiley & Sons, 1983
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An Invitation to biomathematics
Raina S. Robeva
Elsevier, 2008
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Berger, Peter L.
Invitation to sociology : a humanistic perspective
Anchor Books, 1963
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Deutsch, Kenneth L.
An Invitation to political thought
Thomson, 2009
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Curtis, Helena
Invitation to biology / Helena Curtis
Worth Publishers, 1972
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