TY  - BOOK
AU  - Barrett A.J., et.all.
TI  - Handbook of Proteolytic Enzymes: Vol-1: Aspartic and Metallo Peptidases
SN  - 0120796112
U1  - 572.76 BAR 
PY  - 2004///
CY  - Boston
PB  - Elsevier Publishers
ER  -