TY - GEN AU - Pike,Kenneth Lee TI - Tone languages. A technique for determining the number and type of pitch contrasts in a language, with studies in tonemic substitution and fusion U1 - 414.5 21 PY - 1948/// CY - Ann Arbor, Michigan (USA) PB - University of Michigan Press KW - ENTONACIÓN KW - ESTUDIO Y ENSEÑANZA KW - FONOLOGÍA ER -