Great Britain. Schools Council Project Technology. (1973). Photocell applications. Hodder and Stoughton.
Chicago-referens (17:e uppl.)Great Britain. Schools Council Project Technology. Photocell Applications. London: Hodder and Stoughton, 1973.
MLA-referens (9:e uppl.)Great Britain. Schools Council Project Technology. Photocell Applications. Hodder and Stoughton, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.