TY  - BOOK
AU  - Tortora,Gerard J.
TI  - Microbiology : an introduction 
SN  - 8131722325 (paperback)
PY  - 2007///
CY  - New Delhi
PB  - Dorling Kindersley
N2  - Introduction to biology
UR  - http://www.amazon.com/exec/obidos/ASIN/8131722325/chopaconline-20
ER  -