TY  - BOOK
AU  - Bellman, Richard
TI  - Pesturbation Techniques In Maths, Phys, & Engineering
U1  - 510 
PY  - 1972///
CY  - Trissur
PB  - Thacker
KW  - General Stack
KW  - NATURAL SCIENCES
KW  - MATHEMATICSPESTURBATION
KW  - Generalia
ER  -