Gebel Abu Khruq

MOUSTAFA, G.A., 1982, PROBLEMS AND REQUIREMENTS FOR IDENTIFYING, EXPLORING, AND DEVELOPING RESOURCES-- THE OUTLOOK FOR EGYPT, IN WHITMORE, F.C., JR., AND WILLIAMS, M.E., EDS., RESOURCES FOR THE TWENTY-FIRST CENTURY-- PROCEEDINGS OF THE INTERNATIONAL CENTENNIAL SYMPOSIUM OF THE UNITED STATES GEOLOGICAL SURVEY, HELD AT RESTON, VIRGINIA, OCTOBER 14-19, 1979, P. 53-57MOUSTAFA, 1982, P. 55.