TY  - BOOK
AU  - Yan, Haowen
AU  - Yang, Weifang
TI  - Surveying: Principles and Methods
SN  - 9781842657201
U1  - 526.9 
PY  - 2012///
CY  - Beijing
PB  - Science Press
KW  - Astronomy and allied sciences
KW  - Pure Sciences
KW  - Surveying
ER  -