Roland Werro.

MLA

Baumann, Hans, et al. Roland Werro. Bern: Kunsthalle Bern, 1997.

APA

Baumann, H., Buser, R., Loock, U., & Werro, R. (1997). Roland Werro. Bern: Kunsthalle Bern.

Chicago

Baumann, Hans, Richard Buser, Ulrich Loock, and Roland Werro. Roland Werro. Bern: Kunsthalle Bern, 1997.