Smith, G. (1989). Coastal navigation: :a programmed learning course (Ed.3.). Adlard coles nautical.
Chicago Edition CitationSmith, Gerry. Coastal Navigation: :a Programmed Learning Course. Ed.3. London: Adlard coles nautical, 1989.
MLA Edition CitationSmith, Gerry. Coastal Navigation: :a Programmed Learning Course. Ed.3. Adlard coles nautical, 1989.
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