Helicopter operations of the Geological Survey of Canada.
Helicopter operations of the Geological Survey of Canada.
- [Ottawa] Dept. of Mines and Technical Survey, Canada [1959]
- xi, 60 p. illus., maps, diagrs., tables.
- Its Bulletin 54 .
- Bulletin (Geological Survey of Canada) ; 54. .
Abstract in English and French.
Includes bibliographies.
gs 61000031
Helicopters.
Geology--Fieldwork.
Geology--Canada--Maps.
Photographic surveying.
Geology--Surveys.--Canada
QE185 / .A43 no. 54
Abstract in English and French.
Includes bibliographies.
gs 61000031
Helicopters.
Geology--Fieldwork.
Geology--Canada--Maps.
Photographic surveying.
Geology--Surveys.--Canada
QE185 / .A43 no. 54