| Type |  Book |
| ชื่อเรื่อง | Conference on refraction effects in geodesy : conference on electronic distance measurement / editor: P. V. Angus-Leppan |
| ผู้แต่ง | Ref-edm conference : 1968 : University of new south wales |
| พิมพลักษณ์ | Kensington, N.S.W. : Department of Surveying, University of New South Wales, 1969 |
| รูปเล่ม | xv, 264 p. : ill., diagrs., maps |
| หัวเรื่อง | Distances --Measurement --Congresses [] |
| | Electronics in surveying --Congresses [] |
| | Refraction --Congresses [] |