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