RATNA SAGAR. (2013). NUMBER MAGIC COMPANION A COMPLETE RESOURCE FOR TEACHERS- 5. RATNA SAGAR.
Cita Chicago (17th ed.)RATNA SAGAR. NUMBER MAGIC COMPANION A COMPLETE RESOURCE FOR TEACHERS- 5. RATNA SAGAR, 2013.
Cita MLA (9th ed.)RATNA SAGAR. NUMBER MAGIC COMPANION A COMPLETE RESOURCE FOR TEACHERS- 5. RATNA SAGAR, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.