@book{578103,
	author = {Planning and Transport Research and Computation (London:22May 1969) and Planning and Transport Research and Computation (London:22May 1969)},
	title = {Proceedings of P.T.R.C. Seminar, Planning Programming and Budgeting systems and decision Making in local Government 2,},
	publisher = {PTRC Co. Ltd.        },
	year = {1969},
	address = {London}
}