HASTINGS HUNTER. (2008). IMPROVE YOUR MARKETING TO GROW YOUR BUSINESS. PEARSON EDUCATION.
Chicago Style aipamenaHASTINGS HUNTER. IMPROVE YOUR MARKETING TO GROW YOUR BUSINESS. NEW DELHI: PEARSON EDUCATION, 2008.
MLA aipamenaHASTINGS HUNTER. IMPROVE YOUR MARKETING TO GROW YOUR BUSINESS. PEARSON EDUCATION, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.