Habberton, W., & Roth, L. V. (1952). Man's achievements through the ages. Laidlaw.
Citazione stile Chigago Style (17a edizione)Habberton, William, e Lawrence V. Roth. Man's Achievements Through the Ages. Chicago [u.a.]: Laidlaw, 1952.
Citatione MLA (9a ed.)Habberton, William, e Lawrence V. Roth. Man's Achievements Through the Ages. Laidlaw, 1952.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.