Mary Northrup

Mary Northrup is the author of "Teaching Time-Savers", "Pioneering American Computer Geniuses", "Picture Books for Children" and "American Computer Pioneers".

Books by Mary Northrup

Pioneering Americ...
Northrup, Mary
Hardback: $35.93

Teaching Time-Sav...
Northrup, Mary
Paperback: $24.95

Pioneering Americ...
Northrup, Mary
Paperback: $13.88

Pioneering Americ...
Northrup, Mary
Electronic book text: $35.93