APA (7th ed.) Zitazioa

Elshafei, A. (1969). On The Machine Interference Problem. The Institute of National Planning.

Chicago Style (17th ed.) Zitazioa

Elshafei, Alwalid. On The Machine Interference Problem. Cairo: The Institute of National Planning, 1969.

MLA (9th ed.) Zitazioa

Elshafei, Alwalid. On The Machine Interference Problem. The Institute of National Planning, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.