APA-viite (7. p.)
Souter Gerry. (1997). Buying and selling multimedia services. Focal Press.
Chicago-viite (17. p.)
Souter Gerry. Buying and Selling Multimedia Services. New Delhi: Focal Press, 1997.
MLA-viite (9. p.)
Souter Gerry. Buying and Selling Multimedia Services. Focal Press, 1997.
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