Abdounur, O. J. (2001). Ratios and music in the late middle ages: A preliminary survey. Max-Planck-Inst. für Wissenschaftsgeschichte.
Citazione stile Chigago Style (17a edizione)Abdounur, Oscar Joao. Ratios and Music in the Late Middle Ages: A Preliminary Survey. Berlin: Max-Planck-Inst. für Wissenschaftsgeschichte, 2001.
Citatione MLA (8a ed.)Abdounur, Oscar Joao. Ratios and Music in the Late Middle Ages: A Preliminary Survey. Max-Planck-Inst. für Wissenschaftsgeschichte, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.