Folk, G. E. (1942). Patents and industrial progress: A summary, analysis, and evaluation of the record on patents of the Temporary National Economic Committee. Harper & Brothers.
Chicago-referens (17:e uppl.)Folk, George E. Patents and Industrial Progress: A Summary, Analysis, and Evaluation of the Record on Patents of the Temporary National Economic Committee. New York, London: Harper & Brothers, 1942.
MLA-referens (8:e uppl.)Folk, George E. Patents and Industrial Progress: A Summary, Analysis, and Evaluation of the Record on Patents of the Temporary National Economic Committee. Harper & Brothers, 1942.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.