@book{140469,
	author = { Clark, Fred E. and Kotler, Philip.},
	title = {Principles of marketing /},
	publisher = {Prentice Hall,},
	year = {1946.},
	address = {New York :},
	edition = {3rd ed.},
	note = {Edition for U.S. published under: Principles of marketing / Philip Kotler, Gary Armstrong. 7th ed., c1996.}
}