Frost, A. (2016). Practical navigation for officers of the watch (2nd ed.). Glasgow/ Brown son & Ferguson.
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Dyfyniad Arddull Chicago
Frost, A. Practical Navigation for Officers of the Watch. 2nd ed. Great Britain: Glasgow/ Brown son & Ferguson, 2016.
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Dyfyniad MLA
Frost, A. Practical Navigation for Officers of the Watch. 2nd ed. Glasgow/ Brown son & Ferguson, 2016.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.