Citazione Stile APA (7a Edizione)

Willis, R. F. (1986). From ancient times through the sixteenth century (2. ed.). Heath.

Citazione stile Chigago Style (17a edizione)

Willis, Roy F. From Ancient Times Through the Sixteenth Century. 2. ed. Lexington, Mass: Heath, 1986.

Citatione MLA (9a ed.)

Willis, Roy F. From Ancient Times Through the Sixteenth Century. 2. ed. Heath, 1986.