Timmons, J. A., & Olin, F. W. (1999). New venture creation: Entrepreneurship for the 21st century (5th ed.). Irwin McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Timmons, Jeffry A., e Franklin W. Olin. New Venture Creation: Entrepreneurship for the 21st Century. 5th ed. Singapore: Irwin McGraw-Hill, 1999.
Citatione MLA (9a ed.)Timmons, Jeffry A., e Franklin W. Olin. New Venture Creation: Entrepreneurship for the 21st Century. 5th ed. Irwin McGraw-Hill, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.