Não informado. (1975). Canadian Journal of Remote Sensing. Canadian Aeronautics and Space Institute.
Chicago-referens (17:e uppl.)Não informado. Canadian Journal of Remote Sensing. Ottawa: Canadian Aeronautics and Space Institute, 1975.
MLA-referens (8:e uppl.)Não informado. Canadian Journal of Remote Sensing. Canadian Aeronautics and Space Institute, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.