@book{7021,
	author = {Campbell, Neil A., and Reece, Jane B.},
	title = {Essential biology /},
	publisher = {Benjamin Cummings,},
	year = {2001.},
	address = {San Francisco ;},
	note = {System requirements for accompanying computer disc: 166 MHz Intel Pentium processor or greater; Windows 95, 98, NT4, 2000; or Macintosh; 120 MHz PowerPC; OS8.1 or higher.}
}