Certo, S. C. (1980). Fundamental readings in modern management: Functions and systems. Wm.C. Brown.
Lua i Stíl Chicago (17ú heag.)Certo, Samuel C. Fundamental Readings in Modern Management: Functions and Systems. Iowa: Wm.C. Brown, 1980.
Lua MLA (9ú heag.)Certo, Samuel C. Fundamental Readings in Modern Management: Functions and Systems. Wm.C. Brown, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.