APA-viite (7. p.)
Denny, M. (2007). Ingenium: Five machines that changed the world. Johns Hopkins University Press.
Chicago-viite (17. p.)
Denny, Mark. Ingenium: Five Machines That Changed the World. Baltimore: Johns Hopkins University Press, 2007.
MLA-viite (9. p.)
Denny, Mark. Ingenium: Five Machines That Changed the World. Johns Hopkins University Press, 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.