1.
The Voice of Reason: Fundamentals of Critical Thinking
by Burton F. Porter
ISBN: 9780195141221
List Price: $84.95
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Philosophy: A Literary and Conceptual Approach
by Porter, Burton F.
ISBN: 9780155705531
List Price: $41.50
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Voice of Reason: Fundamentals of Critical Thinking : International Edition
by Porter, Burton F.
ISBN: 9780195399868
List Price: $67.95
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13.
What the Tortoise Taught Us : The Story of Philosophy
by Porter, Burton F.
ISBN: 9781442205529
List Price: $24.00
14.
What the Tortoise Taught Us : The Story of Philosophy
by Porter, Burton
ISBN: 9781442205512
List Price: $39.95
15.
Deity and Morality-with Regard to the Naturalistic Fallacy
by Porter, Burton F.
ISBN: 9780041000122
List Price: $7.95
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What the Tortoise Taught Us : The Story of Philosophy
by Porter, Burton Frederick
ISBN: 9781442205536
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Deity and Morality : With Regard to the Naturalistic Fallacy
by Porter, Burton F.
ISBN: 9780415822183
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