SINGH & JAMES. (2011). PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS.
Cita Chicago (17th ed.)SINGH & JAMES. PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS, 2011.
Cita MLA (9th ed.)SINGH & JAMES. PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.