TY  - BOOK
AU  - Poulden L A
TI  - Duodecimal book with tables,for the use of surveyors,architects,builders & students
U1  - 513.56 
PY  - 1959///
CY  - London
PB  - Cleaver-Hume Press
KW  - Arithmetics
KW  - Mathematics
ER  -