00868cam a22002531 4500 pa 62000022 DLC 20260227111855.0 750708s1961 dcuab b 000 0 spadc pa 62000022 (OCoLC)1435368 Pan American Union. NSbSU OCoLC DLC premarc HC227 .P34 Pan American Union. Division of Economic Development. Informe sobre la integración económica y social del Perú central. Washington, Unión Panamericana, 1961. xxix, 181 p. illus., maps (part fold., part col.) diagrs., tables. 28 cm. Bibliographical footnotes. Peru Economic conditions 1918-1968. Peru Social conditions. Peru Economic policy. Natural resources Peru. 51493 51493