Symposium on the Challenge of Development (1957 : Hebrew University). (1958). The challenge of development: [papers]. The Eliezer Kaplan School of Economics and Social Sciences.
Lua i Stíl Chicago (17ú heag.)Symposium on the Challenge of Development (1957 : Hebrew University). The Challenge of Development: [papers]. Jerusalem: The Eliezer Kaplan School of Economics and Social Sciences, 1958.
Lua MLA (9ú heag.)Symposium on the Challenge of Development (1957 : Hebrew University). The Challenge of Development: [papers]. The Eliezer Kaplan School of Economics and Social Sciences, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.