Gaya APA

Blum, S, G. (2014). Negotiating Your Investment: Use Proven Negotiation Methods to Enrich Your Financial Life . New Jersey-USA: John Wiley & Son.

Gaya MLA

Blum, Steven, G.. "Negotiating Your Investment: Use Proven Negotiation Methods to Enrich Your Financial Life". New Jersey-USA: John Wiley & Son, 2014. Text.