TY  - BOOK
AU  - Cowan, M. Kelly.
TI  - Microbiology : a systems approach 
SN  - 9780073522524
PY  - 2012///
CY  - New York 
PB  - McGraw-Hill
KW  - Microbiological Phenomena x immunology
KW  - Communicable Diseases x microbiology
KW  - Immunity
ER  -