Halloran, J. W. (1990). Why entrepreneurs fail: Avoid the 20 fatal pitfalls of running your business. Liberty Hall.
Chicago-viite (17. p.)Halloran, James W. Why Entrepreneurs Fail: Avoid the 20 Fatal Pitfalls of Running Your Business. New York: Liberty Hall, 1990.
MLA-viite (9. p.)Halloran, James W. Why Entrepreneurs Fail: Avoid the 20 Fatal Pitfalls of Running Your Business. Liberty Hall, 1990.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.