Henzell-Thomas, N. (1990). Supercharge your selling: 60 tips in 60 minutes. Hutchinson Business.
Čikaški stil citiranja (17. izdanje)Henzell-Thomas, Nigel. Supercharge Your Selling: 60 Tips in 60 Minutes. London: Hutchinson Business, 1990.
MLA način citiranja (9. izdanje)Henzell-Thomas, Nigel. Supercharge Your Selling: 60 Tips in 60 Minutes. Hutchinson Business, 1990.
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