TY  - BOOK
AU  - Weaver,Elbert C.
TI  - Laboratory introduction to chemistry with workbook exercises / 
PY  - 1947///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - QUIMICA
KW  - MANUALES DE LABORATORIO
KW  - LABORATORIOS QUIMICOS
ER  -