Παραπομπή APA
Sanders, D. J. (1988). The Nautical Institute on the work of the harbour master and related port management functions. London: Nautical Institute.
Παραπομπή Chicago StyleSanders, David J. The Nautical Institute On the Work of the Harbour Master and Related Port Management Functions. London: Nautical Institute, 1988.
Παραπομπή MLASanders, David J. The Nautical Institute On the Work of the Harbour Master and Related Port Management Functions. London: Nautical Institute, 1988.
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