Ricker, J., & Saywell, J. (1973). Triumphs of Western civilization: The creativity of man. Clarke, Irwin.
Citazione stile Chigago Style (17a edizione)Ricker, John, e John Saywell. Triumphs of Western Civilization: The Creativity of Man. Toronto [u.a.]: Clarke, Irwin, 1973.
Citatione MLA (9a ed.)Ricker, John, e John Saywell. Triumphs of Western Civilization: The Creativity of Man. Clarke, Irwin, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.