APA引文

Stephen S. Willoughby. (2009). Real math: Grade 4. Columbus, OH: SRA/McGraw-Hill.

Trích dẫn kiểu Chicago

Stephen S. Willoughby. Real Math: Grade 4. Columbus, OH: SRA/McGraw-Hill, 2009.

MLA引文

Stephen S. Willoughby. Real Math: Grade 4. Columbus, OH: SRA/McGraw-Hill, 2009.

警告：这些引文格式不一定是100％准确.