Levitt, T. (1969). Marketing for business growth. Mc Graw Hill.
Chicago Style aipamenaLevitt, Theodore. Marketing for Business Growth. New York: Mc Graw Hill, 1969.
MLA aipamenaLevitt, Theodore. Marketing for Business Growth. Mc Graw Hill, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.