郭玲玲主编. (2018). 伟大推销员的成功之道. 团结出版社.
Lua i Stíl Chicago (17ú heag.)郭玲玲主编. 伟大推销员的成功之道. 团结出版社, 2018.
Lua MLA (8ú heag.)郭玲玲主编. 伟大推销员的成功之道. 团结出版社, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)