| 000 | 00481n a2200157ua 4500 | ||
|---|---|---|---|
| 040 | _aP K Kelkar Library, IIT Kanpur | ||
| 082 |
_a808.5 _bP854v |
||
| 100 | _aPotter, Ralpf K | ||
| 245 | 0 |
_aVisible speech _cRalph K. Potter, George A. Kopp and Harriet Green Kopp |
|
| 260 |
_aNew York _bDover Publications _c1966 |
||
| 300 | _axiv, 439p | ||
| 650 | _aDeaf--Means Of Communication | ||
| 650 | _aSpeech | ||
| 650 | _aTelephone--Equipment And Supplies | ||
| 997 | _aA1788 C | ||
| 999 |
_c457602 _d457602 |
||