APA ציטוט

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.

ציטוט MLA

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