Dyfyniad APA

Couper, A. D. (1972). The geography of sea transport. Hutchin University Library.

Dyfyniad Arddull Chicago

Couper, A. D. The Geography of Sea Transport. London: Hutchin University Library, 1972.

Dyfyniad MLA

Couper, A. D. The Geography of Sea Transport. Hutchin University Library, 1972.

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