APA
Central institute of english and foreign languages, . (1977). Exercises in spoken english. Oxford University Press, New Delhi: .
Chicago
Central institute of english and foreign languages, . 1977. Exercises in spoken english. Oxford University Press, New Delhi: .
Harvard
Central institute of english and foreign languages, . (1977). Exercises in spoken english. Oxford University Press, New Delhi: .
MLA
Central institute of english and foreign languages, . Exercises in spoken english. Oxford University Press, New Delhi: . 1977.