Gaya APA
Hamdy, A, T.
(1982).
Operations an introduction second edition
(
2)
.
Atheneum, New York:
Collier macmillan.
Gaya MLA
Hamdy, A., Taha,.
"Operations an introduction second edition".
2
Atheneum, New York:
Collier macmillan,
1982.
Text.