Cita APA (7a ed.)

(1994). The complete cyberspace reference and directory: An addressing and utilization guide to the Internet, electronic mail systems, and bulletin board systems / Gilbert Held.

Cita Chicago Style (17a ed.)

The Complete Cyberspace Reference and Directory: An Addressing and Utilization Guide to the Internet, Electronic Mail Systems, and Bulletin Board Systems / Gilbert Held. 1994.

Cita MLA (9a ed.)

The Complete Cyberspace Reference and Directory: An Addressing and Utilization Guide to the Internet, Electronic Mail Systems, and Bulletin Board Systems / Gilbert Held. 1994.