TY  - BOOK
AU  - Simpson,Peter
TI  - Basic concepts in organic chemistry: a programmed learning approach 
SN  - 0412558300
AV  - QD253 S48
PY  - 1994///
CY  - London
PB  - Chapman and Hall
KW  - Química orgánica
KW  - Instruccion programada
ER  -