APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.