TY  - BOOK
AU  - Colson,Greta
TI  - Voice production and speech
SN  - 0-273-31769-5
AV  - QP306.C75 
PY  - 1973///
CY  - Nairobi
PB  - Pitman Publishing Ltd
KW  - Voice
KW  - Speech
KW  - Physiological aspects
ER  -