TY  - BOOK
AU  - Timberlake,Karen C.
TI  - Chemistry: an introduction to general, organic, and biological chemistry 
SN  - 0805335684
AV  - QD31.2 T552 2001
PY  - 2001///
CY  - San Francisco, México City
PB  - B. Cummings
KW  - Química
ER  -