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Piaget J

titleISBN-13
(ISBN-10)		year of publication
Main Trends in Interdisciplinary Research978-O-O6-131755-2
(O-O6-131755-1)		1979

Barbel Piaget Jean · J. Piaget · Jean Piaget Jean · P.J. · Piaget Jean · Piaget Jean & Inhelder Brbel

Piaget Jean