Dyfyniad APA

Clark, M. (1960). Elements of commerce: For beginers. Longmans green and company limited.

Dyfyniad Arddull Chicago

Clark, M. Elements of Commerce: For Beginers. London: Longmans green and company limited, 1960.

Dyfyniad MLA

Clark, M. Elements of Commerce: For Beginers. Longmans green and company limited, 1960.

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