APA (7th ed.) Citation

Singh, S. (2005). Big bang: The most important scientific discovery of all time and why you need to know about it. Harpe Perennial.

Chicago Style (17th ed.) Citation

Singh, Simon. Big Bang: The Most Important Scientific Discovery of All Time and Why You Need to Know About It. London: Harpe Perennial, 2005.

MLA (9th ed.) Citation

Singh, Simon. Big Bang: The Most Important Scientific Discovery of All Time and Why You Need to Know About It. Harpe Perennial, 2005.