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  1. 1
    Ahmedabad : Director, Govt. Printing and Stationery,
    v. : ill., maps ; 22-25 cm.
  2. 2
    Published 1961
    Dhanbad, India : Central Mining Research Station, [1961-
    v. : ill. ; 21-25 cm.
  3. 3
    [New Delhi] Oil & Natural Gas Commission.
    v. ill., maps. 27 cm.
  4. 4
    Published 1966
    [S.l.] : The Commission, [-1966?]
    v. : ill. ; 27 cm.
  5. 5
    Published 1977
    New Delhi : Monitoring & Evaluation (Chem.) Cell, Dept. of Chemicals & Fertilizers, Ministry of Petroleum, Chemicals & Fertilizers, Govt. of India, 1977?-
    v. ; 30 cm.

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