Sadanand,Kamlesh, & Punitha,Susheela. (2008). Spoken English: A foundation course-part 1. Orient Longman.
Chicago Style aipamenaSadanand,Kamlesh, and Punitha,Susheela. Spoken English: A Foundation Course-part 1. Hyderabad: Orient Longman, 2008.
MLA aipamenaSadanand,Kamlesh, and Punitha,Susheela. Spoken English: A Foundation Course-part 1. Orient Longman, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.