APA-Zitierstil (7. Ausg.)

Valentine, L. M. (1987). Business cycles and forecasting (7. ed., 2. print.). South-Western Publ. Co.

Chicago-Zitierstil (17. Ausg.)

Valentine, Lloyd M. Business Cycles and Forecasting. 7. ed., 2. print. Cincinnati, Ohio [u.a.]: South-Western Publ. Co, 1987.

MLA-Zitierstil (9. Ausg.)

Valentine, Lloyd M. Business Cycles and Forecasting. 7. ed., 2. print. South-Western Publ. Co, 1987.