@book{9262,
	author = {Burn, Nancy and Grove, Susan K.},
	title = {The Practice of nursing research : appraisal, synthesis, and generation of evidence},
	publisher = {Saunders Elsevier ,},
	year = { 2009},
	address = {Philadelphia: },
	edition = {6th ed},
	note = {Includes bibliographical references and index}
}