John, Fritz.
Partial differential equations / - 3rd edn / - New Delhi : Narosa Publishing House , 1980 - 198p ;
3-540-78022-X
Mathematics
B334 / L1,L8;2
Partial differential equations / - 3rd edn / - New Delhi : Narosa Publishing House , 1980 - 198p ;
3-540-78022-X
Mathematics
B334 / L1,L8;2