398108 Nicholls, A. E., & Cockcroft, A. N. (1983). Nicholls's seamanship and nautical knowledge. Glasgow : Brown and Ferguson.
Chicago-čujuhus (17. p.)398108 Nicholls, Alfred Edward, juo A. N. Cockcroft. Nicholls's Seamanship and Nautical Knowledge. Glasgow : Brown and Ferguson, 1983.
MLA-čujuhus (9. p.)398108 Nicholls, Alfred Edward, juo A. N. Cockcroft. Nicholls's Seamanship and Nautical Knowledge. Glasgow : Brown and Ferguson, 1983.
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