@book{39781,
	author = {Gravetter, Frederick J., and Forzano, Lori-Ann B.,},
	title = {Research methods for the behavioral sciences /},
	publisher = {Thomson Wadson,},
	year = {2006.},
	address = {Australia:},
	edition = {2nd edition.},
	note = {It include appendix, glossary, references and index.}
}