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Lua i Stíl Chicago (17ú heag.)International Bureau of Education agus International Conference on Public Education. The Shortage of Secondary School Teachers: Research in Comparative Education. Geneva, Paris: International Bureau of Education; Unesco, 1967.
Lua MLA (8ú heag.)International Bureau of Education agus International Conference on Public Education. The Shortage of Secondary School Teachers: Research in Comparative Education. International Bureau of Education; Unesco, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.