Kølln, H. (1969). Oppositions of voice in Greek, Slavic, and Baltic. Historisk-filosofiske meddelelser 43,4.
शिकागो स्टाइल उद्धरणKølln, Herman. "Oppositions of Voice in Greek, Slavic, and Baltic." Historisk-filosofiske Meddelelser 43,4 1969.
एमएलए उद्धरणKølln, Herman. "Oppositions of Voice in Greek, Slavic, and Baltic." Historisk-filosofiske Meddelelser 43,4 1969.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.