Não informado. (1966). Training and development journal. American Society for Training and Development.
Lua i Stíl Chicago (17ú heag.)Não informado. Training and Development Journal. Alexandria, Va: American Society for Training and Development, 1966.
Lua MLA (8ú heag.)Não informado. Training and Development Journal. American Society for Training and Development, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.