  1995 - Digital Mantras the Language of Abstract and VIrtual Worlds (Paperback) ISBN-13: 9780262581431 ISBN-10: 0262581434 Genres: Computers & Technology, Science & Math ?  1994 - Digital Mantras the Languages of Abstract and VIrtual Worlds (Hardcover) ISBN-13: 9780262082280 ISBN-10: 0262082284 Genres: Computers & Technology, Reference ? |
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