TY  - BOOK
AU  - D H HEY
TI  - ENCYCLOPAEDIA
U1  - R 540.03K 619 
PY  - 1966///
CY  - LONDON
PB  - BAILLIERE, TINDALL AND CASSELL
KW  - ENCYCLOPAEDIA
N1  - MODERN BOOK HOUSE JAWAHARGANJ JABALPUR
ER  -