@book{125111,
	author = {Brown, William. and Thomson, Godfrey Hilton,},
	title = {The essentials of mental measurement /},
	publisher = {The University press,},
	year = {1940.},
	series = {The Cambridge psychological library},
	address = {Cambridge :},
	edition = {4th ed.},
	note = {"First edition 1911 (by W. Brown) ... fourth edition 1940."}
}