Presscott's Microbiology 9th edition :
https://drive.google.com/file/d/0B94V4IF...p=drivesdk
Microbiology_10th ed_Tortora :
https://drive.google.com/file/d/0B94V4IF...p=drivesdk
https://drive.google.com/file/d/0B94V4IF...p=drivesdk
Microbiology_10th ed_Tortora :
https://drive.google.com/file/d/0B94V4IF...p=drivesdk