APA (7th ed.) Citation

Gopalakrishnan, R. (2010). When the Penny Drops. Portfolio Penguin.

Chicago Style (17th ed.) Citation

Gopalakrishnan, R. When the Penny Drops. Portfolio Penguin, 2010.

MLA (9th ed.) Citation

Gopalakrishnan, R. When the Penny Drops. Portfolio Penguin, 2010.

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