एपीए उद्धरण

 Helal, A. A. (1996).  Replication techniques in distributed systems.  Kluwer Academic Publishers.

शिकागो स्टाइल उद्धरण

 Helal, Abdelsalam A.  Replication Techniques in Distributed Systems.  Kluwer Academic Publishers, 1996.

एमएलए उद्धरण

 Helal, Abdelsalam A.  Replication Techniques in Distributed Systems.  Kluwer Academic Publishers, 1996.