Zimmerer, T. W., & Scarborough, N. M. (2005). Essentials of entrepreneurship and small business management (4th ed.). Pearson/Prentice Hall.
Chicago-viite (17. p.)Zimmerer, Thomas W., ja Norman M. Scarborough. Essentials of Entrepreneurship and Small Business Management. 4th ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2005.
MLA-viite (9. p.)Zimmerer, Thomas W., ja Norman M. Scarborough. Essentials of Entrepreneurship and Small Business Management. 4th ed. Pearson/Prentice Hall, 2005.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.