TY  - BOOK
AU  - Shastri, Gayaprasad Upadhaya
TI  - Dhwani siddhant aur vyanjanavrit
U1  - 891.43109 SHA 
PY  - 1970///
CY  - Agra
PB  - Sarswati Pustak Sadan
KW  - Hindi literature
ER  -