TY - BOOK AU - Bush,Clara N. TI - Phonetic variation and acoustic distinctive features: a study of four general American fricatives U1 - 421.5 PY - 1964/// CY - The Hague PB - Mouton KW - English language KW - United States KW - Phonetics KW - Consonants N1 - Bibliography : p. 154-161 ER -