@book{199965,
	author = {Carkhuff, Robert R., and Carkhuff, Robert R.,},
	title = {The art of helping in the 21st century},
	publisher = {Human Resource Development Press},
	year = {c2000.},
	address = {Amherst, Mass.},
	edition = {8th ed.},
	note = {Rev. ed. of: The art of helping. c1993.}
}