TY  - MANSCPT
AU  - Ketcham, W.B. 
TI  - Dictionary of scientific illustrations and symbols
U1  - 426.4000 K49 
PY  - 1894///
CY  - New York : 
PB  - Wilbur B Ketcham, 
KW  - lengua inglesa-diccionarios
ER  -