Dyfyniad APA

Blyth, C. (1969). American business cycles. George Allen and Unwin Ltd.

Dyfyniad Arddull Chicago

Blyth, C.A. American Business Cycles. London: George Allen and Unwin Ltd, 1969.

Dyfyniad MLA

Blyth, C.A. American Business Cycles. George Allen and Unwin Ltd, 1969.

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