21. Military art and science. Monthly list of military information carded from books, periodicals, and other sources, no. 48; Sept. 21-Oct. 20, 1919. Bookmark Corporate/Agency Authors: General Staff College and War Department Publisher: General Staff College Date: [1919.]
22. Military art and science. Monthly list of military information carded from books, periodicals, and other sources, no. 49; Oct. 21-Nov. 20, 1919. Bookmark Corporate/Agency Authors: General Staff College and War Department Publisher: General Staff College Date: [1919.]