W. E. JOHNSON, Logic: Part III. The Logical Foundations of Science (Book Review) - Langford, C. H. (Periodicals Archive Online (PAO), 1927)
http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1016-1927-000-00-000116
Keywords: CL-CZ