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  1. 1
    New Delhi, Govt. of India, Ministry of Petroleum & Chemicals.
    4 v. 21 cm.
  2. 2
    New Delhi, Govt. of India, Ministry of Chemicals and Fertilisers.
    v. 21 cm.
  3. 3
    New Delhi, Govt. of India, Dept. of Chemicals and Fertilizers.
    v. 22 cm.
  4. 4
    New Delhi, Economics & Statistics Division, Ministry of Petroleum and Chemicals, Government of India.
    v. 30 cm.
  5. 5
    Publicado em 1983
    New Delhi : The Ministry, 1983-
    v. ; 31 cm.
  6. 6
    Hyderabad, Andhra Pradesh : Hyderabad Chemicals & Fertilizers Limited.
    volumes ; 27 cm.
  7. 7
    Publicado em 1982
    New Delhi : The Dept., 1982.
    v. ; 31 cm.

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