, A. i. t. p. An introduction to pipeline pigging. Gulf Publishing Company.
Lua i Stíl Chicago (17ú heag.), An introduction to pipeline. An Introduction to Pipeline Pigging. Gulf Publishing Company.
Lua MLA (8ú heag.), An introduction to pipeline. An Introduction to Pipeline Pigging. Gulf Publishing Company.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.