LANCASTER, G. (1993). Essential Of Marketing. McGraw-Hill.
Chicago Style aipamenaLANCASTER, Gooffrey. Essential Of Marketing. McGraw-Hill, 1993.
MLA aipamenaLANCASTER, Gooffrey. Essential Of Marketing. McGraw-Hill, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.