Cita APA (7a ed.)

Pattakos, A., & Covey, S. R. (2010). Prisoners of our thoughts: Viktor Frankl's principles for discovering meaning in life and work (2nd ed.). Berrett-Koehler.

Cita Chicago Style (17a ed.)

Pattakos, Alex, y Stephen R. Covey. Prisoners of Our Thoughts: Viktor Frankl's Principles for Discovering Meaning in Life and Work. 2nd ed. San Francisco, CA: Berrett-Koehler, 2010.

Cita MLA (9a ed.)

Pattakos, Alex, y Stephen R. Covey. Prisoners of Our Thoughts: Viktor Frankl's Principles for Discovering Meaning in Life and Work. 2nd ed. Berrett-Koehler, 2010.