Punitha, S. (2008). Spoken English: A foundation course (With CD)- Part I. Orient Longman.
Citazione stile Chigago Style (17a edizione)Punitha, Susheela. Spoken English: A Foundation Course (With CD)- Part I. Hyderabad: Orient Longman, 2008.
Citatione MLA (9a ed.)Punitha, Susheela. Spoken English: A Foundation Course (With CD)- Part I. Orient Longman, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.