Citazione Stile APA (7a Edizione)

Duffy, J. W. (1964). Power, prime mover of technology. McKnight & McKnight.

Citazione stile Chigago Style (17a edizione)

Duffy, Joseph W. Power, Prime Mover of Technology. Bloomington, Ill.: McKnight & McKnight, 1964.

Citatione MLA (9a ed.)

Duffy, Joseph W. Power, Prime Mover of Technology. McKnight & McKnight, 1964.