丹尼 & 灵思泉. (2009). 换个思维找客户: Winning new business. 京华出版社.
Lua i Stíl Chicago (17ú heag.)丹尼 agus 灵思泉. 换个思维找客户: Winning New Business. 京华出版社, 2009.
Lua MLA (8ú heag.)丹尼 agus 灵思泉. 换个思维找客户: Winning New Business. 京华出版社, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.