Cita APA (7th ed.)

Fatch, B. (1994). Electronic mail system: A network manager`s guide. McGraw Hill.

Cita Chicago (17th ed.)

Fatch, Burhan. Electronic Mail System: A Network Manager`s Guide. NewYork: McGraw Hill, 1994.

Cita MLA (9th ed.)

Fatch, Burhan. Electronic Mail System: A Network Manager`s Guide. McGraw Hill, 1994.