Alexander, Ernest R. Approaches to planning : introducing current planning theories, concepts, and issues / Ernest R. Alexander. - New York : Gordon and Breach Science Publishers, c1986. - x, 147 p. : ill. ISBN: 2881241409 Subjects--Topical Terms: Planning. LC Class. No.: HD87.5 / .A425 1986 Dewey Class. No.: 658.4/012�19