Gaya APA

Business forecasting / John E. Hanke ; Arthur G. Reitsch. (1993). Englewood Cliffs, NJ: Prentice-Hall, c.

Gaya MLA

Business forecasting / John E. Hanke ; Arthur G. Reitsch. 6th ed.. Englewood Cliffs, NJ: Prentice-Hall, c, 1993. Buku Wajib.