Helicopter operations of the Geological Survey of Canada.

Bibliographic Details
Corporate Author:	Geological Survey of Canada
Format:	Book
Language:	English
Published:	[Ottawa] : Dept. of Mines and Technical Survey, Canada, [1959]
Series:	Bulletin (Geological Survey of Canada) ; 54.
Subjects:	Helicopters. Geology > Field work. Geology > Canada > Maps. Photographic surveying. Geology > Canada > Surveys.

Description
Item Description:	Abstract in English and French.
Physical Description:	xi, 60 pages : illustrations, maps, diagrams, tables.
Bibliography:	Includes bibliographies.