APA aipamena

Christopher, M. (1972). Marketing below-the-line. George Allen & Unwin.

Chicago Style aipamena

Christopher, Martin. Marketing Below-the-line. London: George Allen & Unwin, 1972.

MLA aipamena

Christopher, Martin. Marketing Below-the-line. George Allen & Unwin, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.