Gaya APA
Howell, D, W.
(1992).
Principles & Methods of Scheduling Reservations
(
3 rd ed.)
.
USA:
Prentice Hall.
Gaya MLA
Howell, David, W..
"Principles & Methods of Scheduling Reservations".
3 rd ed.
USA:
Prentice Hall,
1992.
Text.