Schermerhorn, J. R. (1984). Management for productivity. John & Wiley.
Lua i Stíl Chicago (17ú heag.)Schermerhorn, John R. Management for Productivity. New York: John & Wiley, 1984.
Lua MLA (9ú heag.)Schermerhorn, John R. Management for Productivity. John & Wiley, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.