APA aipamena

Fells, R. (2010). Effective Negotiation. Cambridge University Press.

Chicago Style aipamena

Fells, Ray. Effective Negotiation. New Delhi: Cambridge University Press, 2010.

MLA aipamena

Fells, Ray. Effective Negotiation. Cambridge University Press, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.