Barbee, D. E. (1972). A systems approach to community college education. Auerbach Publishers.
Chicago-referens (17:e uppl.)Barbee, David E. A Systems Approach to Community College Education. Princeton: Auerbach Publishers, 1972.
MLA-referens (8:e uppl.)Barbee, David E. A Systems Approach to Community College Education. Auerbach Publishers, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.