@article{251830,
      url = {http://digitallibrary.un.org/record/251830},
      title = {Proposal for draft amendments to Regulation no. 49,  Emissions of C.I. and N.G. fuelled engines and P.I. engines  LPG fuelled /},
      publisher = {[UN],},
      recid = {251830},
      pages = {6 p. :},
      address = {Geneva :. 1998-03-19},
      year = {1998},
      month = {Mar},
}