Kølln, H. (1969). Oppositions of voice in Greek, Slavic, and Baltic. Historisk-filosofiske meddelelser 43,4.
Dyfyniad Arddull ChicagoKølln, Herman. "Oppositions of Voice in Greek, Slavic, and Baltic." Historisk-filosofiske Meddelelser 43,4 1969.
Dyfyniad MLAKølln, Herman. "Oppositions of Voice in Greek, Slavic, and Baltic." Historisk-filosofiske Meddelelser 43,4 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.