@book{61680,
	author = {Barker, Philip},
	title = {Basic principles of human-computer interface design},
	publisher = {Hutchinson Education, },
	year = {c1989.},
	address = {London : },
	note = {Includes Index},
	url = {http://www.amazon.com/Basic-Principles-Computer-Interface-Design/dp/0091823404/ref=sr_1_1?s=books&ie=UTF8&qid=1415436221&sr=1-1&keywords=0091823404}
}