oa Clean Air Journal = Tydskrif vir Skoon Lug - President's message

Volume 20, Issue 1
  • ISSN : 1017-1703



First of all I would like to wish all members (NACA), local and international associates well and hope 2011 has been good. It is with a great appreciation and a feeling of happiness and fulfilment that I congratulate the NACA editorial committee on successful release of the first issue of the NACA Journal in 2011.

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