Não informado. (1969). Issues today: The magazine for high school social studies. American Education Publications, Xerox Education Group.
Lua i Stíl Chicago (17ú heag.)Não informado. Issues Today: The Magazine for High School Social Studies. Columbus, Ohio: American Education Publications, Xerox Education Group, 1969.
Lua MLA (8ú heag.)Não informado. Issues Today: The Magazine for High School Social Studies. American Education Publications, Xerox Education Group, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.