Birkland, Thomas A. An Introduction to the Policy Process : theories, concepts, and models of public policy making / Thomas A. Birkland - 4th ed. - London : Routledge ; c2016. - xviii, 397p. : ill. (B&W) ; 24cm. Includes : Index ISBN: 97807656446620 Subjects--Topical Terms: Policy Planning Dewey Class. No.: 320.6 / BIR