APA (7th ed.) Citation

Frankl, V. E., & Batthyány, A. (2010). The feeling of meaninglessness: A challenge to psychotherapy and philosophy. Marquette Univ. Press.

Chicago Style (17th ed.) Citation

Frankl, Viktor E., and Alexander Batthyány. The Feeling of Meaninglessness: A Challenge to Psychotherapy and Philosophy. Milwaukee: Marquette Univ. Press, 2010.

MLA (9th ed.) Citation

Frankl, Viktor E., and Alexander Batthyány. The Feeling of Meaninglessness: A Challenge to Psychotherapy and Philosophy. Marquette Univ. Press, 2010.