APA (7th ed.) Citation

Ayres, L. P. (1939). Turning points in business cycles. Macmillan.

Chicago Style (17th ed.) Citation

Ayres, Leonard Porter. Turning Points in Business Cycles. New York: Macmillan, 1939.

MLA (9th ed.) Citation

Ayres, Leonard Porter. Turning Points in Business Cycles. Macmillan, 1939.

Warning: These citations may not always be 100% accurate.