RATNA SAGAR. (2017). NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. RATNA SAGAR.
Cita Chicago (17th ed.)RATNA SAGAR. NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. NEW DELHI: RATNA SAGAR, 2017.
Cita MLA (9th ed.)RATNA SAGAR. NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. RATNA SAGAR, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.