Encylopedia... (1974). Chemical and process technology encylopedia. Mc Graw Hill.
Lua i Stíl Chicago (17ú heag.)Encylopedia... Chemical and Process Technology Encylopedia. Mc Graw Hill, 1974.
Lua MLA (8ú heag.)Encylopedia... Chemical and Process Technology Encylopedia. Mc Graw Hill, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.