Smith, G. (1989). Coastal navigation: :a programmed learning course (Ed.3.). Adlard coles nautical.
शिकागो स्टाइल उद्धरणSmith, Gerry. Coastal Navigation: :a Programmed Learning Course. Ed.3. London: Adlard coles nautical, 1989.
एमएलए उद्धरणSmith, Gerry. Coastal Navigation: :a Programmed Learning Course. Ed.3. Adlard coles nautical, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.