APA (7th ed.) Citation

Randall, L. (2011). Knocking on heaven's door: How physics and scientific thinking illuminate the universe and the modern world. Ecco.

Chicago Style (17th ed.) Citation

Randall, Lisa. Knocking on Heaven's Door: How Physics and Scientific Thinking Illuminate the Universe and the Modern World. New York: Ecco, 2011.

MLA (8th ed.) Citation

Randall, Lisa. Knocking on Heaven's Door: How Physics and Scientific Thinking Illuminate the Universe and the Modern World. Ecco, 2011.

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