association, G. p. (1982). Plant processing of natural gas. Gas processors association.
Lua i Stíl Chicago (17ú heag.)association, Gas processors. Plant Processing of Natural Gas. Gas processors association, 1982.
Lua MLA (8ú heag.)association, Gas processors. Plant Processing of Natural Gas. Gas processors association, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.