TY  - BOOK
AU  - Pickering, Charles L 
AU  - Tarr, John C (Ed.)
TI  - Printing theory and practice : Compositors work 
PY  - 1958///
CY  - London: 
PB  - Sir ISAAC Pitman & Sons Ltd., 
KW  - Compositors equipment
KW  - Origins principles
ER  -