Ehrenberg, A. S. C. (1972). Repeat-buying; theory and applications. North-Holland Pub. Co.; American Elsevier.
Chicago Style aipamenaEhrenberg, A. S. C. Repeat-buying; Theory and Applications. Amsterdam, New York: North-Holland Pub. Co.; American Elsevier, 1972.
MLA aipamenaEhrenberg, A. S. C. Repeat-buying; Theory and Applications. North-Holland Pub. Co.; American Elsevier, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.