Timmers, P. (1999). Electronic commerce: Strategies and models for business-to-business trading. New York; Chichester: John Wiley and Sons.
استشهاد بنمط شيكاغوTimmers, Paul. Electronic Commerce: Strategies and Models for Business-to-business Trading. New York; Chichester: John Wiley and Sons, 1999.
MLA استشهادTimmers, Paul. Electronic Commerce: Strategies and Models for Business-to-business Trading. New York; Chichester: John Wiley and Sons, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.