Cita APA (7a ed.)

Trisha Knowledge Systems, issuing body. (2020). Trishna's Mathematics 2020: Class 9 (Ninth edition.). Pearson India Education Services Pvt. Ltd.

Cita Chicago Style (17a ed.)

Trisha Knowledge Systems, issuing body. Trishna's Mathematics 2020: Class 9. Ninth edition. Uttar Pradesh, India: Pearson India Education Services Pvt. Ltd, 2020.

Cita MLA (9a ed.)

Trisha Knowledge Systems, issuing body. Trishna's Mathematics 2020: Class 9. Ninth edition. Pearson India Education Services Pvt. Ltd, 2020.