Czegel, B. (2001). Technical support on the web: Designing and maintaining an effective E-Support site. New York: John Wiley & Sons, Inc.
Citación estilo ChicagoCzegel, Barbara. Technical Support On the Web: Designing and Maintaining an Effective E-Support Site. New York: John Wiley & Sons, Inc, 2001.
Cita MLACzegel, Barbara. Technical Support On the Web: Designing and Maintaining an Effective E-Support Site. New York: John Wiley & Sons, Inc, 2001.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.