Backer, E. (1995). Computer Assisted Reasoning In Cluster Analysis Eric Backer. Prentice-Hall.
Chicago-referens (17:e uppl.)Backer, Eric. Computer Assisted Reasoning In Cluster Analysis Eric Backer. Prentice-Hall, 1995.
MLA-referens (8:e uppl.)Backer, Eric. Computer Assisted Reasoning In Cluster Analysis Eric Backer. Prentice-Hall, 1995.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.