TY  - DATA
AU  - John Walker
AU  -  Joseph Awange
TI  - Surveying for Civil and Mine Engineers
SN  - 9783030458034
PB  - springer
KW  - Engineering
KW  - Surveying
UR  - https://link.springer.com/openurl?genre=book&isbn=978-3-030-45803-4
ER  -