TY  - BOOK
AU  - Clarke, Emerson,
AU  - Curnock, James,
TI  - How to prepare effective engineering proposals: A workbook for the proposal writer 
AV  - T11 C52
PY  - 1962///
CY  - River forest, illinois
PB  - Tw publishers
KW  - Redacción de escritos técnicos
ER  -