Gaya APA

Apel, K. (2001). The response of discourse ethics to the moral challenge of the human situation as such and especially today. Mercier Lectures, Louvain-la-Neuve, March 1999 . Leuven: Leuven Peeters.

Gaya MLA

Apel, Karl-Otto. "The response of discourse ethics to the moral challenge of the human situation as such and especially today. Mercier Lectures, Louvain-la-Neuve, March 1999 ". Leuven: Leuven Peeters, 2001. Buku.