Books by Jonas Langer

Cover of Piaget, evolution, and development

Piaget, evolution, and development

by Jonas Langer, Melanie Killen

1998
Cover of Theories of development

Theories of development

by Jonas Langer

1969
Cover of Biology and Knowledge Revisited

Biology and Knowledge Revisited

by Sue Taylor Parker, Jonas Langer, Constance Milbrath

2014

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