APA引文

P.Pickett William. (2004). Leaders of the Americas 2. American: McGraw -Hill.

Trích dẫn kiểu Chicago

P.Pickett William. Leaders of the Americas 2. American: McGraw -Hill, 2004.

MLA引文

P.Pickett William. Leaders of the Americas 2. American: McGraw -Hill, 2004.

警告：这些引文格式不一定是100％准确.