Steiner, B., & Aguirre, P. (2013). The Europen book: [ed. by Barbara Steiner on behalf of the Goethe-Institut London. Texts by Peio Aguirre.]. Jovis-Verl..

Steiner, Barbara, and Peio Aguirre. The Europen Book: [ed. by Barbara Steiner on Behalf of the Goethe-Institut London. Texts by Peio Aguirre.]. Berlin: Jovis-Verl., 2013.

Steiner, Barbara, and Peio Aguirre. The Europen Book: [ed. by Barbara Steiner on Behalf of the Goethe-Institut London. Texts by Peio Aguirre.]. Jovis-Verl., 2013.