APA引文

(1994). Putting customers first: Standards for serving the american poeple. Washington: [Washington].

Trích dẫn kiểu Chicago

Putting Customers First: Standards for Serving the American Poeple. Washington: [Washington], 1994.

MLA引文

Putting Customers First: Standards for Serving the American Poeple. Washington: [Washington], 1994.

警告：這些引文格式不一定是100％准確.