TY  - BOOK
AU  - Richardus,P.
TI  - Project surveying : : general adjustment and optimization technique s with applications to engineering surveying / 
U1  - 526.9 RIC 
PY  - 1974///]
CY  - Amsterdam, North-Holland, 
PB  - 
KW  - Surveying
N1  -  Bibliography: (p.452-457)
ER  -