Gaya APA

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

Gaya MLA

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