Não informado. (1974). Energy pipelines and systems. Chilton Book.
Lua i Stíl Chicago (17ú heag.)Não informado. Energy Pipelines and Systems. Houston, Tex: Chilton Book, 1974.
Lua MLA (8ú heag.)Não informado. Energy Pipelines and Systems. Chilton Book, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.