Tilak, J. B. G. (1985). Discriminatory pricing in education. National Institute of Educational Planning and Administration.
Chicago-referens (17:e uppl.)Tilak, Jandhyala B. G. Discriminatory Pricing in Education. New Delhi, India: National Institute of Educational Planning and Administration, 1985.
MLA-referens (8:e uppl.)Tilak, Jandhyala B. G. Discriminatory Pricing in Education. National Institute of Educational Planning and Administration, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.