CHAPMAN K. (1991). THE INTERNATIONAL PETRO CHEMICAL INDUSTRY. BLACK WELL.
Lua i Stíl Chicago (17ú heag.)CHAPMAN K. THE INTERNATIONAL PETRO CHEMICAL INDUSTRY. OXFORD: BLACK WELL, 1991.
Lua MLA (9ú heag.)CHAPMAN K. THE INTERNATIONAL PETRO CHEMICAL INDUSTRY. BLACK WELL, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.