United Nation's Educational, Scientific and Cultural Organization. (1971). Scientists abroad: A study of the international movement of persons in science and technology. United Nations Educational Scientific and Cultural Organization.
Lua i Stíl Chicago (17ú heag.)United Nation's Educational, Scientific and Cultural Organization. Scientists Abroad: A Study of the International Movement of Persons in Science and Technology. Paris: United Nations Educational Scientific and Cultural Organization, 1971.
Lua MLA (9ú heag.)United Nation's Educational, Scientific and Cultural Organization. Scientists Abroad: A Study of the International Movement of Persons in Science and Technology. United Nations Educational Scientific and Cultural Organization, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.