Formula:Graesse
E Vicipaedia
Graesse, J. G. Th., Orbis latinus, 1861, versio interretialis: http://www.columbia.edu/acis/ets/Graesse/contents.html.
Graesse, J. G. Th., Orbis latinus, 1861, versio interretialis: http://www.columbia.edu/acis/ets/Graesse/contents.html.