Cita APA

Biller, K. (2002). Viktor Frankl - opposing views. Journal of contemporary history.

Citación estilo Chicago

Biller, Karlheinz. "Viktor Frankl - Opposing Views." Journal of Contemporary History 2002.

Cita MLA

Biller, Karlheinz. "Viktor Frankl - Opposing Views." Journal of Contemporary History, 2002.