U. R. Rao. (1996). Space technologyor sustainable development. New Delhi, India: Tata McGraw-Hill.
Chicago Style aipamenaU. R. Rao. Space Technologyor Sustainable Development. New Delhi, India: Tata McGraw-Hill, 1996.
MLA aipamenaU. R. Rao. Space Technologyor Sustainable Development. New Delhi, India: Tata McGraw-Hill, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.