TY  - BOOK
AU  - Johnson, W.
AU  - Sowerby.R and Venter, R.D
TI  - Plane strain slip-line fields for metal-deformation process: a source book & bibliography
SN  - 0080254527
U1  - 620.11233 
PY  - 1982///
CY  - Oxford
PB  - Pergamon
ER  -