00327nam a2200121Ia 4500003000400000008004100004020001500045040000800060110001100068245009300079260002400172300000900196LDD181029s9999    xx            000 0 und d  a9231019511  cLDD  aUNESCO 0aIslam, philosophy and sciencebfour public lectures organized by unesco june 198cUNESCO  aParisbUNESCOc1981  a168p