APA-referens

Hill, D. R. (1984). A history of engineering in classical and medieval times. London: Croom Helm.

Chicago-stil citat

Hill, Donald Routledge. A History of Engineering in Classical and Medieval Times. London: Croom Helm, 1984.

MLA-referens

Hill, Donald Routledge. A History of Engineering in Classical and Medieval Times. London: Croom Helm, 1984.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.