APA (7e ed.) Bronvermelding

Staber, E. (1987). Approach to testing and maintaining telephone exchanges and networks. Standard Telephone und Radio AG.

Chicago (17e ed.) Bronvermelding

Staber, E. Approach to Testing and Maintaining Telephone Exchanges and Networks. Zurich, Switzerland: Standard Telephone und Radio AG, 1987.

MLA (9e ed.) Bronvermelding

Staber, E. Approach to Testing and Maintaining Telephone Exchanges and Networks. Standard Telephone und Radio AG, 1987.