Dyfyniad APA

Gardner, R. L. (1961). How to make money in the commodity market.

Dyfyniad Arddull Chicago

Gardner, Robert L. How to Make Money in the Commodity Market. Prentice-Hall Inc.,Englewood, 1961.

Dyfyniad MLA

Gardner, Robert L. How to Make Money in the Commodity Market. 1961.

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