CYNTHIAL SHAMEL. (2004). INTRODUCTION TO ONLINE MARKET & INDUSTRY RESEARCH. THOMSON.
Chicago Style aipamenaCYNTHIAL SHAMEL. INTRODUCTION TO ONLINE MARKET & INDUSTRY RESEARCH. AUSTRALIA: THOMSON, 2004.
MLA aipamenaCYNTHIAL SHAMEL. INTRODUCTION TO ONLINE MARKET & INDUSTRY RESEARCH. THOMSON, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.