00636nam a2200181 a 4500 20200107024923.0 080115s19uu xx 00 eng d Esto, Rey. World scientists and inventors for the students : with pictures and biographies for their inventions and discoveries / by Rey Esto. =s.l.= R.E. Books Marketing, 1989. v. Cover title. Scientists Biography. Inventors Biography. Inventions. Donation 58085 58085 0 0 0 0 HSLRC HSLRC BIO 2020-01-07 0 Q 141 E88 1989 HS3036 2025-05-23 00:00:00 2020-01-07 BK