TY  - BOOK
AU  - edited by Arne Hessenbruch
TI  - Encyclopaedia of the History of Science : a reader's guide : vol.1 : A-M
SN  - 81-86830-42-1
U1  - R 503 E.H.S. 
PY  - 2002///
CY  - Penatgon Press, New Delhi
KW  - General Reference Works
ER  -