Magnus, H. (1902). Visual economics: With rules for estimation of the earning ability after injuries to the eyes. C. Porth.
Chicago-Zitierstil (17. Ausg.)Magnus, Herman. Visual Economics: With Rules for Estimation of the Earning Ability After Injuries to the Eyes. Milwaukee: C. Porth, 1902.
MLA-Zitierstil (9. Ausg.)Magnus, Herman. Visual Economics: With Rules for Estimation of the Earning Ability After Injuries to the Eyes. C. Porth, 1902.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.