Hammond, J. S., Keeney, R. L., & Raiffa, H. (1999). Smart choices: A practical guide to making better life decisions. Broadway Books.
Lua i Stíl Chicago (17ú heag.)Hammond, John S., Ralph L. Keeney, agus Howard Raiffa. Smart Choices: A Practical Guide to Making Better Life Decisions. Nueva York: Broadway Books, 1999.
Lua MLA (9ú heag.)Hammond, John S., et al. Smart Choices: A Practical Guide to Making Better Life Decisions. Broadway Books, 1999.
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