STEINER GEORGE A. (1979). STRATEGIC PLANNING: WHAT EVERY MANAGER MUST KNOW. FREE PRESS.
Lua i Stíl Chicago (17ú heag.)STEINER GEORGE A. STRATEGIC PLANNING: WHAT EVERY MANAGER MUST KNOW. LONDON: FREE PRESS, 1979.
Lua MLA (9ú heag.)STEINER GEORGE A. STRATEGIC PLANNING: WHAT EVERY MANAGER MUST KNOW. FREE PRESS, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.