APA
Timmers P., . (1999). Electronic commerce : strategies and models for business-to-business trading. John Wiley: Chichester.
Chicago
Timmers Paul, . 1999. Electronic commerce : strategies and models for business-to-business trading. John Wiley: Chichester.
Harvard
Timmers P., . (1999). Electronic commerce : strategies and models for business-to-business trading. John Wiley: Chichester.
MLA
Timmers Paul, . Electronic commerce : strategies and models for business-to-business trading. John Wiley: Chichester. 1999.