Cita APA (7th ed.)

Bocker, P. (1988). ISDN, the integrated services digital network: Concepts, methods, systems. Springer Verlag.

Cita Chicago (17th ed.)

Bocker, P. ISDN, the Integrated Services Digital Network: Concepts, Methods, Systems. Berlin ; New York: Springer Verlag, 1988.

Cita MLA (8th ed.)

Bocker, P. ISDN, the Integrated Services Digital Network: Concepts, Methods, Systems. Springer Verlag, 1988.