TY  - BOOK
AU  - edited by J R Ainsworth Davis [et al]
TI  - Encyclopaedia of scientific developments inventions & discoveries : vol.IV
SN  - 81-86505-15-6 (sets)
U1  - 503 ESDID 
PY  - 1996///
CY  - Bhavana Books & Prints, New Delhi
ER  -