TY  - BOOK
AU  - BARR (Thomas)
TI  - Practical mathematics for continuation and engineering surveying classes
U1  - 519/6 
PY  - 0000///
CY  - London
PB  - Blackie and Son Limited
KW  - surveying
KW  - Practical
KW  - mathematics
KW  - for
KW  - engineering
KW  - continuation
KW  - classes
KW  - and
ER  -