Lua APA (7ú heag.)
Keen, P. G. W., & Sol, H. G. (2008). Decision enhancement services: Rehearsing the future for decisions that matter. IOS Press.
Lua i Stíl Chicago (17ú heag.)
Keen, Peter G. W., agus H. G. Sol. Decision Enhancement Services: Rehearsing the Future for Decisions That Matter. Amsterdam: IOS Press, 2008.
Lua MLA (9ú heag.)
Keen, Peter G. W., agus H. G. Sol. Decision Enhancement Services: Rehearsing the Future for Decisions That Matter. IOS Press, 2008.
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