APA (7th ed.) Citation

O'brien Derek & O'Brien, D. (2007). The Penguin yearbook 2008. Penguin Books India.

Chicago Style (17th ed.) Citation

O'brien Derek and Derek O'Brien. The Penguin Yearbook 2008. New Delhi, India: Penguin Books India, 2007.

MLA (9th ed.) Citation

O'brien Derek and Derek O'Brien. The Penguin Yearbook 2008. Penguin Books India, 2007.

Warning: These citations may not always be 100% accurate.