Spiegelglas, Stephen, Economic development: challenge and promise/ Edited by Stephen Spiegelglas and Charles J. Welsh. - Englewood Cliffs, N.J., Prentice-Hall; 1970. - xi, 366 p. 24 cm. Includes bibliographical references. ISBN: 0132233541 LCCN: 70078491 Subjects--Topical Terms: Economic development.Economic policy. Dewey Class. No.: 338.9 / SPE 1970