APA aipamena

Trockel,Walter. (1984). Market demand. Springer.

Chicago Style aipamena

Trockel,Walter. Market Demand. New York: Springer, 1984.

MLA aipamena

Trockel,Walter. Market Demand. Springer, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.