Artus, P. (1990). Investment and Factor Demand. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Artus, P. Investment and Factor Demand. ELSEVIER, 1990.
Lua MLA (8ú heag.)Artus, P. Investment and Factor Demand. ELSEVIER, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.