Cita APA (7a ed.)

Hegger, M., Drexler, H., & Zeumer, M. (2007). Materials. Birkhauser.

Cita Chicago Style (17a ed.)

Hegger, Manfred, Hans Drexler, y Martin Zeumer. Materials. Berlin: Birkhauser, 2007.

Cita MLA (9a ed.)

Hegger, Manfred, et al. Materials. Birkhauser, 2007.