Não informado. (1966). Management Today. Haymarket Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Management Today. London: Haymarket Publishing, 1966.
Lua MLA (8ú heag.)Não informado. Management Today. Haymarket Publishing, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.