Dyfyniad APA

Ellis,Howard S. (1949). A survey of contemporary economics. The Blakinston Company.

Dyfyniad Arddull Chicago

Ellis,Howard S. A Survey of Contemporary Economics. Philadelphia: The Blakinston Company, 1949.

Dyfyniad MLA

Ellis,Howard S. A Survey of Contemporary Economics. The Blakinston Company, 1949.

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