(2001). The world of science: :The universe,No.8. S Chand and Company.
Chicago Edition CitationThe World of Science: :The Universe,No.8. New Delhi: S Chand and Company, 2001.
MLA Edition CitationThe World of Science: :The Universe,No.8. S Chand and Company, 2001.
Warning: These citations may not always be 100% accurate.