TY  - BOOK
AU  - Pickering, Charles L 
AU  - Tarr, John C (Ed.)
TI  - Printing theory and practice : Bookwork and imposition 4
PY  - 1948///
CY  - London: 
PB  - Sir ISAAC Pitman & Sons Ltd., 
KW  - Compositors equipment
KW  - Origins principles
ER  -