YOUNG AUTHORS: A LEARN-BY-DOING EXPERIMENT - Evans, H. Dean (Periodicals Archive Online (PAO), 1979)
http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3091-1979-080-03-000009
Keywords: LH-LO