TY  - BOOK
AU  - Chakraborty D K
TI  - Nimnatapamatrabijaan(a textbook on cryogenics)
U1  - 536.56 
PY  - 1979///
CY  - Calcutta
PB  - West Bengal State Book Board
KW  - Cryogenics
KW  - Heat
ER  -