Wren P.C. High School English Grammar & Composition. S. Chand & Company Pvt Ltd.
Citazione stile Chigago Style (17a edizione)Wren P.C. High School English Grammar & Composition. New Delhi New Delhi: S. Chand & Company Pvt Ltd.
Citatione MLA (9a ed.)Wren P.C. High School English Grammar & Composition. S. Chand & Company Pvt Ltd.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.