PANDYA & SHELL. (2012). LASTING LEADERSHIP. PEARSON.
Chicago Style aipamenaPANDYA & SHELL. LASTING LEADERSHIP. DELHI: PEARSON, 2012.
MLA aipamenaPANDYA & SHELL. LASTING LEADERSHIP. PEARSON, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.