@book{547712,
	author = {Sayers, M. W. and Gillespie, T. D. and University of Michigan.},
	title = {The international road roughness experiment :},
	publisher = {World Bank,},
	year = {c1986.},
	address = {Washington, D.C. :},
	note = {"A collaborative study undertaken by The University of Michigan Transportation Research Institute ... [et al.]."}
}