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Author

Betty L. Gibbs

3 books found

Cover of Earth Science Software Directory

Earth Science Software Directory

Betty L. Gibbs · First published 1993 · Latest edition 2001

Cover of Earth Science Software Directory 1995-1996

Earth Science Software Directory 1995-1996

Betty L. Gibbs · First published 1995

Cover of Miss Independence

Miss Independence

Betty L. Gibbs · First published 1978