APA
National Physical Laboratory, National Physical Laboratory, . (1992). Annual report, 1992-93. Delhi: National Physical Laboratory.
Chicago
National Physical Laboratory, National Physical Laboratory, . 1992. Annual report, 1992-93. Delhi: National Physical Laboratory.
Harvard
National Physical Laboratory, National Physical Laboratory, . (1992). Annual report, 1992-93. Delhi: National Physical Laboratory.
MLA
National Physical Laboratory, National Physical Laboratory, . Annual report, 1992-93. Delhi: National Physical Laboratory. 1992.
