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Author

Erwin Boschmann

7 books found

Cover of Paraguay

Paraguay

Erwin Boschmann · First published 2009

Cover of The electronic classroom

The electronic classroom

Erwin Boschmann · First published 1995

Cover of Physical Science Laboratory Manual

Physical Science Laboratory Manual

Ronald G. Samec, James P Gundlach, Erwin Boschmann, Norman Wells, L. A. Young · First published 1991

Cover of Chemistry in action

Chemistry in action

Erwin Boschmann, Norman Wells · First published 1984

Cover of Ten teaching tools

Ten teaching tools

Erwin Boschmann · First published 1987

Cover of Thoughts to Live by

Thoughts to Live by

Erwin Boschmann · First published 1987

Cover of Studies in chemistry

Studies in chemistry

Erwin Boschmann · First published 1976