BOYDELL TOM. (1981). MANAGEMENT SELF DEVELOPEMENT CONCEPTS AND PRACTICE. GOWER.
Lua i Stíl Chicago (17ú heag.)BOYDELL TOM. MANAGEMENT SELF DEVELOPEMENT CONCEPTS AND PRACTICE. ENGLAND: GOWER, 1981.
Lua MLA (9ú heag.)BOYDELL TOM. MANAGEMENT SELF DEVELOPEMENT CONCEPTS AND PRACTICE. GOWER, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.