Marvan, J. (1979). Prehistoric Slavic contraction. Pennsylvania State University Press.
Dyfyniad Arddull ChicagoMarvan, Jiří. Prehistoric Slavic Contraction. University Park ; London: Pennsylvania State University Press, 1979.
Dyfyniad MLAMarvan, Jiří. Prehistoric Slavic Contraction. Pennsylvania State University Press, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.