Watkins, G. G. (1962). Coastwise navigation: Notes for yachtmen. Kandy.
शिकागो स्टाइल उद्धरणWatkins, G G. Coastwise Navigation: Notes for Yachtmen. Kent: Kandy, 1962.
एमएलए उद्धरणWatkins, G G. Coastwise Navigation: Notes for Yachtmen. Kandy, 1962.
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