Richard Schmalensee and Robert Willig. (1989). Handbook of Industrial Organization. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Richard Schmalensee and Robert Willig. Handbook of Industrial Organization. ELSEVIER, 1989.
Lua MLA (8ú heag.)Richard Schmalensee and Robert Willig. Handbook of Industrial Organization. ELSEVIER, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.