00478nam 2200181 450 2620265http://id.bnportugal.gov.pt/bib/porbase/26202650-8053-8566-5isec005_bc.iso/29-08-2014/853020011206d2002 k y0pory0103 baengUSOpticsEugene Hecht4th edReading, MA [etc.]Addison-Wesleycop. 2002698 p.535BNporHechtEugenePTISECRPC