APA
(1977). Statisics relating to dgtd units for period ending december, 1977. New Delhi: New Delhi, Government of India.
Chicago
1977. Statisics relating to dgtd units for period ending december, 1977. New Delhi: New Delhi, Government of India.
Harvard
(1977). Statisics relating to dgtd units for period ending december, 1977. New Delhi: New Delhi, Government of India.
MLA
Statisics relating to dgtd units for period ending december, 1977. New Delhi: New Delhi, Government of India. 1977.
