APA-viite (7. p.)
Radu, C. (2003). Implementing electronic card payment systems. Artech House.
Chicago-viite (17. p.)
Radu, Cristian. Implementing Electronic Card Payment Systems. Boston: Artech House, 2003.
MLA-viite (9. p.)
Radu, Cristian. Implementing Electronic Card Payment Systems. Artech House, 2003.
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