Barkin, David Regional economic development : the river basin approach in Mexico / by David Barkin and Timothy King - University Press : Cambridge, 1970 - x, 262 p. : maps. ; 22 cm. Includes bibliographical references. ISBN: 0521078377 LCCN: 76-111122 Subjects--Topical Terms: Regional planning--Mexico Subjects--Geographic Terms: Mexico--Economic policyRio Tepalcatepec Valley