APA-referens (7:e uppl.)
ebrary, Inc. (2006). PE pipe: Design and installation. American Water Works Association.
Chicago-referens (17:e uppl.)
ebrary, Inc. PE Pipe: Design and Installation. Denver, Colo.: American Water Works Association, 2006.
MLA-referens (9:e uppl.)
ebrary, Inc. PE Pipe: Design and Installation. American Water Works Association, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.