TY  - BOOK
AU  - Ardley, Neil.
AU  - Bates, Jeffery, Dr.
TI  - Infinitys Encyclopaedia of Science: including more than 100 science projects & qizzea
SN  - 8187233079
U1  - REF 503 ARD 
PY  - 2001///
CY  - New Delhi
PB  - Pritha Offsets Pvt. ltd.
N1  - includes index
ER  -