Hill, F. E. (1937). Listen and learn: Fifteen years of adult education on the air. American Association For Adult Education.
Lua i Stíl Chicago (17ú heag.)Hill, Frank Ernest. Listen and Learn: Fifteen Years of Adult Education on the Air. New York: American Association For Adult Education, 1937.
Lua MLA (8ú heag.)Hill, Frank Ernest. Listen and Learn: Fifteen Years of Adult Education on the Air. American Association For Adult Education, 1937.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.