@book{15888,
	author = {Polit, Denise F. and Hungler, Bernadette P.},
	title = {Nursing research:},
	publisher = {J.B Lippincott Company.,},
	year = {1995.},
	address = {Philadelphia:},
	edition = {5th ed.},
	note = {Includes bibliographical references, appendices and indexes.}
}