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Author: Popper, Karl R. [ All ]

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  Title Copies
Objective Knowledge: An Evolutionary Approach 
Edition: Revised 
Year: 1972 
ISBN: 0198750242 
ISBN 13: 9780198750246 
Conjectures and Refutations; the growth of Scientific Knowledge 
Edition: 3d Edition Revised 
Year: 1969 
ISBN: 0710065086 
ISBN 13: 9780710065087