Gaya APA

Weihs, C., Gaul, W, A. (2005). Classification - the Ubiquitous Challenge (1st ed.). Berlin, Heidelberg: Springer.

Gaya MLA

Weihs, Claus.., Gaul, Wolfgang, A.. "Classification - the Ubiquitous Challenge". 1st ed. Berlin, Heidelberg: Springer, 2005. E Book.