(1969). A descriptive catalog of selected aerial photographs of geologic features in areas outside the United States. U.S. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)A Descriptive Catalog of Selected Aerial Photographs of Geologic Features in Areas Outside the United States. Washington: U.S. Government Printing Office, 1969.
MLA-Zitierstil (9. Ausg.)A Descriptive Catalog of Selected Aerial Photographs of Geologic Features in Areas Outside the United States. U.S. Government Printing Office, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.