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Author

Robert D. Calkins

3 books found

Cover of Bryce Bumps His Head

Bryce Bumps His Head

Calkins, Robert D., Long, Taillefer · First published 2016

Cover of Digger

Digger

Robert D. Calkins · First published 2016

Placeholder cover for The international technology transfer process

The international technology transfer process

Stefan Hyman Robock, Robert D. Calkins · First published 1980