APA
Cunningham P., Froschl F., . (1999). Electronic business revolution: Opportunities and challenges. Berlin: Springer-Verlag.
Chicago
Cunningham Peter, Froschl Friedrich, . 1999. Electronic business revolution: Opportunities and challenges. Berlin: Springer-Verlag.
Harvard
Cunningham P., Froschl F., . (1999). Electronic business revolution: Opportunities and challenges. Berlin: Springer-Verlag.
MLA
Cunningham Peter, Froschl Friedrich, . Electronic business revolution: Opportunities and challenges. Berlin: Springer-Verlag. 1999.