Staley, J. D. (1963). Improving individual productivity. American Management Association.
Lua i Stíl Chicago (17ú heag.)Staley, John D. Improving Individual Productivity. New York: American Management Association, 1963.
Lua MLA (9ú heag.)Staley, John D. Improving Individual Productivity. American Management Association, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.