a practising engineer's manual on energy-efficient lighting Halpeth, M.K. Senthil Kumar, T. Harikumar, G. New Delhi Tata Energy and Resources Institute 2005 (repr) viii, 162p 24cm (Hb) ed. by M.K. Halpeth, T.Senthil Kumar [and] G.Harikumar 333.793216 8179930440 ENG-86732 DBAD / PUB