Fatch, B. (1994). Electronic mail system: A network manager`s guide. McGraw Hill.
Chicago Style aipamenaFatch, Burhan. Electronic Mail System: A Network Manager`s Guide. NewYork: McGraw Hill, 1994.
MLA aipamenaFatch, Burhan. Electronic Mail System: A Network Manager`s Guide. McGraw Hill, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.