Gaya APA

Ambrosch, W. et al (1989). THE INTELLIGENT NETWORK : A join study by bell atlantic, IBM and Siemens . Germany: Springer-Verlag Berlin Heidelberg.

Gaya MLA

Ambrosch, WD. et al. "THE INTELLIGENT NETWORK : A join study by bell atlantic, IBM and Siemens". Germany: Springer-Verlag Berlin Heidelberg, 1989. Text.