Sidgwick, J. B., & Gamble, R. C. (1980). Amateur astronomer's handbook (3rd ed. / prepared by R.C. Gamble.). Dover Publications.
शिकागो स्टाइल उद्धरणSidgwick, J. B., और R. C. Gamble. Amateur Astronomer's Handbook. 3rd ed. / prepared by R.C. Gamble. New York: Dover Publications, 1980.
एमएलए उद्धरणSidgwick, J. B., और R. C. Gamble. Amateur Astronomer's Handbook. 3rd ed. / prepared by R.C. Gamble. Dover Publications, 1980.
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