Armstrong, S. T. (1888). Colour-Blindness in the Mercantile Marine of the United States.
Chicago Style aipamenaArmstrong, S. T. Colour-Blindness in the Mercantile Marine of the United States. 1888.
MLA aipamenaArmstrong, S. T. Colour-Blindness in the Mercantile Marine of the United States. 1888.
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