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Author

Peter S. Roper

3 books found

Cover of Start of the World

Start of the World

Peter S. Roper · First published 2020

Cover of Morning's Gray Light

Morning's Gray Light

Peter S. Roper · First published 2018

Cover of Advances in the Study of Behavior

Advances in the Study of Behavior

Peter J. B. Slater, Jay S. Rosenblatt, Timothy J. Roper · First published 1993 · Latest edition 2004