APA
O'Brien T., . (2017). PERFECT PRESENTATION. New Delhi: Rupa.
Chicago
O'Brien Terry, . 2017. PERFECT PRESENTATION. New Delhi: Rupa.
Harvard
O'Brien T., . (2017). PERFECT PRESENTATION. New Delhi: Rupa.
MLA
O'Brien Terry, . PERFECT PRESENTATION. New Delhi: Rupa. 2017.