Hill, L. . H. (1966). Upward in the black; how to manage a business for profit. Prentice-Hall.
Chicago Style (17. basım) AtıfHill, Lee H. Upward in the Black; How to Manage a Business for Profit. Englewood Cliffs, N.J.: Prentice-Hall, 1966.
MLA (9th ed.) AtıfHill, Lee H. Upward in the Black; How to Manage a Business for Profit. Prentice-Hall, 1966.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..