APA
(1985). Syllabi and courses for Delhi senior school certificate, 1987. New Delhi, India: Central Board of Secondary Education.
Chicago
1985. Syllabi and courses for Delhi senior school certificate, 1987. New Delhi, India: Central Board of Secondary Education.
Harvard
(1985). Syllabi and courses for Delhi senior school certificate, 1987. New Delhi, India: Central Board of Secondary Education.
MLA
Syllabi and courses for Delhi senior school certificate, 1987. New Delhi, India: Central Board of Secondary Education. 1985.
