APA
Council of Scientific and Industrial research, Council of Scientific and Industrial research, . (1990). Annual report, 1990-91. New Delhi: National Physical laboratory.
Chicago
Council of Scientific and Industrial research, Council of Scientific and Industrial research, . 1990. Annual report, 1990-91. New Delhi: National Physical laboratory.
Harvard
Council of Scientific and Industrial research, Council of Scientific and Industrial research, . (1990). Annual report, 1990-91. New Delhi: National Physical laboratory.
MLA
Council of Scientific and Industrial research, Council of Scientific and Industrial research, . Annual report, 1990-91. New Delhi: National Physical laboratory. 1990.
