TY  - GEN
AU  - Graff, Heinz
AU  - Liebscher, Herbert tr.
TI  - Technical fundamentals: metal working
PY  - 1962///
CY  - [s.l.]
PB  - [s.n.]
KW  - Metal works
KW  - Metals - Coloring
KW  - Metal working machinery
ER  -