Howell, D. W. (1987). Principles and methods of scheduling reservations (2nd ed.). National Pub.
Chicago Style (17. basım) AtıfHowell, David W. Principles and Methods of Scheduling Reservations. 2nd ed. Elmsford, N.Y: National Pub, 1987.
MLA (9th ed.) AtıfHowell, David W. Principles and Methods of Scheduling Reservations. 2nd ed. National Pub, 1987.
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