Polakov, W. N. (1925). Man and his affairs from the engineering point of view. Williams & Wilkins Company.
Citace podle Chicago (17th ed.)Polakov, Walter Nicholas. Man and His Affairs from the Engineering Point of View. Baltimore: Williams & Wilkins Company, 1925.
Citace podle MLA (8th ed.)Polakov, Walter Nicholas. Man and His Affairs from the Engineering Point of View. Williams & Wilkins Company, 1925.
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