Gaya APA
Day, C. ().
Ebook IALA World - Wide Academy Level 1.1: Marine Aids Navigation manager (Module 1, Module 2, Module 3) .
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Gaya MLA
Day, Colin.
"Ebook IALA World - Wide Academy Level 1.1: Marine Aids Navigation manager (Module 1, Module 2, Module 3)".
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Text.