Lua APA (7ú heag.)

Albrecht Karl & Albrecht Steve. (1993). Added Value Negotiating ,The Breakthrough Method For Building Balanced Deals. Richard D.Irwin,Inc.

Lua i Stíl Chicago (17ú heag.)

Albrecht Karl agus Albrecht Steve. Added Value Negotiating ,The Breakthrough Method For Building Balanced Deals. USA: Richard D.Irwin,Inc, 1993.

Lua MLA (9ú heag.)

Albrecht Karl agus Albrecht Steve. Added Value Negotiating ,The Breakthrough Method For Building Balanced Deals. Richard D.Irwin,Inc, 1993.

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