Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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