Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
Lua i Stíl Chicago (17ú heag.)Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
Lua MLA (8ú heag.)Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.