(1963). Teaching about world regions. New York (State) University.
Lua i Stíl Chicago (17ú heag.)Teaching About World Regions. Albany, New York: New York (State) University, 1963.
Lua MLA (9ú heag.)Teaching About World Regions. New York (State) University, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.