Columbia subject headings:
Harvard subject headings:
Geology--Egypt--Central Eastern Desert.
Geology--Egypt--Eastern Desert.
Petrology--Egypt--Central Eastern Desert.
Petrology--Egypt--Eastern Desert.
Princeton subject headings:
Geology, Stratigraphic--Precambrian.
Geology, Structural--Egypt--Eastern Desert.
Geology--Egypt--Eastern Desert.
Petrology--Egypt--Eastern Desert.