Cita APA (7a ed.)

Frankl, V. E., Hammond, C., & Batthyany, A. (2011). Man's search for ultimate meaning. Rider.

Cita Chicago Style (17a ed.)

Frankl, Viktor E., Claudia Hammond, y Alexander Batthyany. Man's Search for Ultimate Meaning. London: Rider, 2011.

Cita MLA (9a ed.)

Frankl, Viktor E., et al. Man's Search for Ultimate Meaning. Rider, 2011.