Não informado. (2022). Performance Chemicals International. Reed Business Information.
Lua i Stíl Chicago (17ú heag.)Não informado. Performance Chemicals International. Sutton, Inglaterra: Reed Business Information, 2022.
Lua MLA (8ú heag.)Não informado. Performance Chemicals International. Reed Business Information, 2022.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.