Freiberg, K. (2004). Guts: Companies that blow the doors off business as usual. Currency.
Style de citation Chicago (17e éd.)Freiberg, Kevin. Guts: Companies That Blow the Doors off Business as Usual. New york: Currency, 2004.
Style de citation MLA (9e éd.)Freiberg, Kevin. Guts: Companies That Blow the Doors off Business as Usual. Currency, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.