St. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center records.
Lua i Stíl Chicago (17ú heag.)St. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center Records.
Lua MLA (8ú heag.)St. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center Records.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.