APA-viite (7. p.)

Klein, H. E. (1989). Case method research and case method application. Wacra.

Chicago-viite (17. p.)

Klein, Hans E. Case Method Research and Case Method Application. Needham: Wacra, 1989.

MLA-viite (9. p.)

Klein, Hans E. Case Method Research and Case Method Application. Wacra, 1989.