DRUCKER PETER F. (1992). MANAGING FOR THE FUTURE: THE 1990 AND BEYOND. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Lua i Stíl Chicago (17ú heag.)DRUCKER PETER F. MANAGING FOR THE FUTURE: THE 1990 AND BEYOND. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1992.
Lua MLA (9ú heag.)DRUCKER PETER F. MANAGING FOR THE FUTURE: THE 1990 AND BEYOND. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.