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6by Piaget, Jean, 1896-1980“...International library of psychology, philosophy, and scientific method....”
Published 1950
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7by Piaget, Jean, 1896-1980“...International library of psychology, philosophy, and scientific method....”
Published 1966
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10Published 1987Subjects: “...Psychology, Applied Periodicals....”
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18Published 1975Subjects: “...Psychology Periodicals....”
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19by Beth, Evert Willem, 1908-1964Subjects: “...Psychology Mathematical models....”
Published 1966
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