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Author

Gerard J. Kok

3 books found

Cover of Voorlichting en verandering

Voorlichting en verandering

Gerard J. Kok · First published 1987

Cover of Sociale psychologie in verandering

Sociale psychologie in verandering

H. A. M. Wilke, Gerard J. Kok · First published 1978

Placeholder cover for UFO's

UFO's

Gerard J. Kok · First published 1974