Παραπομπή σε μορφή APA (7η εκδ.)

Elshafei, A. (1969). Process Control Series Equipment Specifications. The Institute of National Planning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Elshafei, Alwalid. Process Control Series Equipment Specifications. Cairo: The Institute of National Planning, 1969.

Παραπομπή σε μορφή MLA (9th εκδ.)

Elshafei, Alwalid. Process Control Series Equipment Specifications. The Institute of National Planning, 1969.