TY  - BOOK
AU  - Usill,George William[from old catalog]
TI  - Practical surveying: a text-book for students preparing for examinations or for survey work at home and overseas 
U1  -  526.9 19
PY  - 1960///]
CY  - London
PB  - Technical Press
KW  - Surveying
N1  - Includes Index
ER  -