APA-viite (7. p.)

Khalil,Tarek. (1999). Civilization, Modern Technology and Sustainable Development (1.). Institute of National planning.

Chicago-viite (17. p.)

Khalil,Tarek. Civilization, Modern Technology and Sustainable Development. 1. Cairo: Institute of National planning, 1999.

MLA-viite (9. p.)

Khalil,Tarek. Civilization, Modern Technology and Sustainable Development. 1. Institute of National planning, 1999.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.