00503nus0 22001933i 450 TSA001956020251003044415.020080421f ||||0itac50 bausbzu||||||||ˆAn ‰Alan R. Apt bookEnglewood cliffsPrentice hallAlan R. Apt booksUFE0976589ITIT-00000020080421IT-BN0095 TSA0019560 01Alan R. Apt book1575337UNISANNIO