Graner, A. C. (1973). Navigation (2nd ed.). Hodder and Stoughton.
शिकागो स्टाइल उद्धरणGraner, A C. Navigation. 2nd ed. London: Hodder and Stoughton, 1973.
एमएलए उद्धरणGraner, A C. Navigation. 2nd ed. Hodder and Stoughton, 1973.
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