(美)艾·里斯(Al Ries),著. (2017). 商战:经典重译版:20th anniversary edition. 机械工业出版社.
Lua i Stíl Chicago (17ú heag.)(美)艾·里斯(Al Ries),著. 商战:经典重译版:20th Anniversary Edition. 机械工业出版社, 2017.
Lua MLA (8ú heag.)(美)艾·里斯(Al Ries),著. 商战:经典重译版:20th Anniversary Edition. 机械工业出版社, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.