Não informado. (1969). Management in action. MCB Journals.
Lua i Stíl Chicago (17ú heag.)Não informado. Management in Action. Croydon, Inglaterra: MCB Journals, 1969.
Lua MLA (8ú heag.)Não informado. Management in Action. MCB Journals, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.