TY  - GEN
AU  - HOFFMAN, W.
TI  - 500 FORMULAS INDUSTRIALES/ 
U1  - C 661.0028 H64 
PY  - 0000///\\\\
CY  - [S.L.: 
PB  - S.E., S.F.]
KW  - 1.INDUSTRIA - FORMULAS, RECETAS
ER  -