Ray, Richard Godfrey 1920-
Aerial photographs in geologic interpretation and mapping / by Richard G. Ray. -- Washington : United States Government Printing Office, 1960 - 230 p. -- (Geological Survey Professional Paper ; 373).
Fotografía aéreaa
Geología
55:778.35
Aerial photographs in geologic interpretation and mapping / by Richard G. Ray. -- Washington : United States Government Printing Office, 1960 - 230 p. -- (Geological Survey Professional Paper ; 373).
Fotografía aéreaa
Geología
55:778.35