@book{191596,
	author = {RAVEN, PETER H  and JOHNSON GEORGE B},
	title = {UNDERSTANDING BIOLOGY},
	publisher = {TIMES MIRROR/MOSBY COLLEGE,},
	year = {1986, },
	address = {ST.LOUIS MISSOURI,},
	edition = {REVISED EDITION},
	note = {INCLUDES BIBLIOGRAPHICAL REFERENCES AND INDEX}
}