00627nam 2200193 450 2184964http://id.bnportugal.gov.pt/bib/porbase/21849640-262-10077-0(encadernado)compraUNLCSH_BC_150.iso/06-07-2009/4629919990526d1999 k y0pory0103 baengGBSystems that learnan introduction to learning theorySanjay Gain e outros2. edLondon<The >MIT Press1999XII, 317 p.24 cmLearning, development, and conceptual change159.95BNporGainSanjayPTUNLCSHRPC