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First Edition 1406 AH = 1986 AD

Second Edition 1412 AH = 1992 AD

Third Edition 1417 AH = 1997 AD

Corrected and Revised

Dar 'Alam al-Kutub For Printing, Publishing, and Distribution Al-'Ulya - West of Al-Tahliya Foundation - Tel: 4651689/4631722 P.O. Box 6460 - Riyadh 11442 - Telefax: 4631336 Kingdom of Saudi Arabia