Cita APA (7a ed.)

Oyen, D. B., & Knetter, M. (1991). Business fluctuations and forecasting. Financial Publishing.

Cita Chicago Style (17a ed.)

Oyen, Duane B., y Michael Knetter. Business Fluctuations and Forecasting. Dearborn: Financial Publishing, 1991.

Cita MLA (9a ed.)

Oyen, Duane B., y Michael Knetter. Business Fluctuations and Forecasting. Financial Publishing, 1991.