Gaya APA

Sippl, C, J., Swanson, C, P. (NULL). Data communications dictionary . London:: London: Van Norstrand Reinhold Company; 1976.

Gaya MLA

Sippl, Charles, J.., Swanson, Carl, P.. "Data communications dictionary". London:: London: Van Norstrand Reinhold Company; 1976, NULL. Text.