Dyfyniad APA

Hough, B. O. (1920). Ocean traffic and trade. Lasalle Extension University.

Dyfyniad Arddull Chicago

Hough, Benjamin Olney. Ocean Traffic and Trade. Chicago: Lasalle Extension University, 1920.

Dyfyniad MLA

Hough, Benjamin Olney. Ocean Traffic and Trade. Lasalle Extension University, 1920.

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