Sheth, J. &. S. (2013). The 4 A's of marketing. Routledge.
Chicago Style aipamenaSheth, Jagdish & Sisadia. The 4 A's of Marketing. New York: Routledge, 2013.
MLA aipamenaSheth, Jagdish & Sisadia. The 4 A's of Marketing. Routledge, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.