SINGH & JAMES. (2011). PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS.
Citazione stile Chigago Style (17a edizione)SINGH & JAMES. PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS, 2011.
Citatione MLA (9a ed.)SINGH & JAMES. PERFECT MATHEMATICS -2 ( TEACHER'S COPY ). EVERGREEN PUBLICATIONS, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.