International Congress of Phonetic Sciences Prag & Hála, B. (1970). Proceedings of the Sixth International Congress of Phonetic Sciences: Held at Prague 7 - 13 September 1967. Academia, Publ. House of the Czechoslovak Academy of Sciences [u.a.].
Chicago Style (17th ed.) CitationInternational Congress of Phonetic Sciences Prag and Bohuslav Hála. Proceedings of the Sixth International Congress of Phonetic Sciences: Held at Prague 7 - 13 September 1967. Prague: Academia, Publ. House of the Czechoslovak Academy of Sciences [u.a.], 1970.
MLA (9th ed.) CitationInternational Congress of Phonetic Sciences Prag and Bohuslav Hála. Proceedings of the Sixth International Congress of Phonetic Sciences: Held at Prague 7 - 13 September 1967. Academia, Publ. House of the Czechoslovak Academy of Sciences [u.a.], 1970.