Citazione Stile APA (7a Edizione)

Usher, A. P. (1988). A history of mechanical inventions. Dover.

Citazione stile Chigago Style (17a edizione)

Usher, Abbott Payson. A History of Mechanical Inventions. Nueva York: Dover, 1988.

Citatione MLA (9a ed.)

Usher, Abbott Payson. A History of Mechanical Inventions. Dover, 1988.