Summer Peacebuilding Institute (SPI). (2003). Peacebuilder Course: Course Schedule 2003. Harrisonburg: Eastern Mennonite University.
Chicago-referens (17:e uppl.)Summer Peacebuilding Institute (SPI). Peacebuilder Course: Course Schedule 2003. Harrisonburg: Eastern Mennonite University, 2003.
MLA-referens (8:e uppl.)Summer Peacebuilding Institute (SPI). Peacebuilder Course: Course Schedule 2003. Harrisonburg: Eastern Mennonite University, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.