Hála, B. (1959). English vowels in phonetic pictures. Naklad. Československé Akad. Vêd.
Chicago Style (17th ed.) CitationHála, Bohuslav. English Vowels in Phonetic Pictures. Praha: Naklad. Československé Akad. Vêd, 1959.
MLA (9th ed.) CitationHála, Bohuslav. English Vowels in Phonetic Pictures. Naklad. Československé Akad. Vêd, 1959.
Warning: These citations may not always be 100% accurate.