| Derek McNally, Unesco - Science - 1994 - 217 pages
Ironically, the technology that has made possible so many exciting astronomical discoveries is now jeopardizing the future of observational astronomy. The effects of ... | |
| Marinella Terzi - History - 1992 - 46 pages
Examines the pyramids, temples, and other existing structures of ancient Egypt and discusses how they figured in or represent that civilization. | |
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