2007-11-01T08:32:47-05:00 2010-01-23T16:49:10-05:00 Comparison of the quantity biographies written about various scientists and inventors in both children's and non children's literature. 28246 Biographies of Scientists and Inventors Writen for Children H7FPbhFRSYonMv3D64gs6g== OCLC worldcat.org 1010308 2007-11-30T20:44:50-05:00