@book{32510,
	author = {Tilton, Richard C},
	title = {Microbiology : PreTest self-assessment and review /},
	publisher = {McGraw-HilI.,},
	year = {1993.},
	series = {Pre Test series},
	address = {New York :},
	edition = {7th ed.},
	note = {Previous edition: 1991.}
}