Hansen, K. 1981. EVOLUTION AND MINERALIZATION OF THE ARABIAN-NUBIAN SHIELD (King Abdulaziz University. Institute of applied geology. lAG bull. No. 3). Oxford 1980. Vol. 3. 164 s., ill. &l kort i lomme. Vol. 4. 168 s., ill. &5 kort i lomme. 29 cm, pr. vol. $ 34.-. Pergamon Press. Geografisk Tidsskrift. 81, (jan. 1981).