@book{167309,
	author = {Grinnell, Richard M. and Grinnell, Richard M.},
	title = {Social work research & evaluation},
	publisher = {F.E. Peacock Publishers},
	year = {c1997.},
	address = {Itasca, Ill.},
	edition = {5th ed.},
	note = {Rev. ed. of: Social work research and evaluation. 4th ed. c1993.}
}