TY  - BOOK
AU  - Potter,Ralph  K.
AU  - Green,Harriet C.
AU  - Kopp,George A.
TI  - Visible speech
U1  - 414 POT  
PY  - 1947///.
CY  - New York : 
PB  - D. Van Nostrand company, 
KW  - Speech
KW  - Deaf--Means of communication
KW  - Telephone--Equipment and supplies
KW  - English language--Pronunciation
KW  - Phonetics
ER  -