Gaya APA

Swanson, C, P., Popyk, M. (1986). Word processing and information system a practical approach to concept . New York: New York: Gregg Division; 1986.

Gaya MLA

Swanson, Carl, P.., Popyk, Marilyn. "Word processing and information system a practical approach to concept". New York: New York: Gregg Division; 1986, 1986. Text.