TY  - BOOK
AU  - GURDEN, Richard Lloyd
TI  - Traverse tables : Computed to four places of decimals for every minute of angle up to one hundred of distance ; for the use of surveyors and engineers
U1  - 526.902 12 G96T 
PY  - 1957///
PB  - London
KW  - TRAVERSE -- TABLES
ER  -