40. Garfield, Eugene. "Copyright, Contents, Pages, Cooperation, Conscience…Necessary Ingredients for the Effective Dissemination of Scientific Knowledge", The Percolater, 35 (1), p. 19-23, 1959 August. Presented at the Annual Symposium Library of the Chemists Club, New York, New York, 1959 April 28, 1959

40. Garfield, Eugene. "Copyright, Contents, Pages, Cooperation, Conscience…Necessary Ingredients for the Effective Dissemination of Scientific Knowledge", The Percolater, 35 (1), p. 19-23, 1959 August. Presented at the Annual Symposium Library of the Chemists Club, New York, New York, 1959 April 28, 1959, Box: 90, Folder: 2. Eugene Garfield Papers, 2009-036. Science History Institute Archives. https://sciencehistory.libraryhost.com/repositories/3/archival_objects/20816 Accessed November 28, 2024.