APA引文

Sheffrey, T. (2006). PMP/CAPM exam preparation guide. Hoboken, N.J: Wiley.

Trích dẫn kiểu Chicago

Sheffrey, Thomas. PMP/CAPM Exam Preparation Guide. Hoboken, N.J: Wiley, 2006.

MLA引文

Sheffrey, Thomas. PMP/CAPM Exam Preparation Guide. Hoboken, N.J: Wiley, 2006.

警告：這些引文格式不一定是100％准確.