Clark, Peter B., 1934- Planning import substitution [by] Peter B. Clark. - Amsterdam, North-Holland Pub. Co., 1970. - xv, 315 p. 23 cm. - Contributions to economic analysis, v. 68 . Includes bibliographies. ISBN: 0720431689 LCCN: 73126499 Nat. Bib. No.: Ne*** Subjects--Topical Terms: Economic policy--Mathematical models. Subjects--Geographic Terms: Nigeria--Economic policy--Mathematical models. LC Class. No.: HC517.N48 / C53 Dewey Class. No.: 330.966905