----, Industrial Unionism, New York, New York Labor News Co., 1911, pamphlet, 25 pp. Address at Grand Central Palace, New York, December 10, 1905. (Advocates formation of one union for all wage-workers.)
----, Revolutionary Unionism, Chicago, C. H. Kerr & Co., 1909. Speech delivered at Chicago, November 23, 1905, 27 p.
Debs, E. V., and others. Unionism, Industrial and Political, Chicago, C. H. Kerr & Co., 1909. Pamphlet.
Debs, E. V., and Russell, C. E., Danger Ahead for the Socialist Party in Playing the Game of Politics, Chicago, C. H. Kerr, n. d., 32 pp., pamphlet, 5 cents. Also in International Socialist Review, Jan., 1911.
* DeLeon, Daniel (editor), As to Politics: a Discussion upon the relative importance of Political Action and of Class Conscious Economic Action, and the Urgent Necessity of Both, New York, Labor News Press, 1907, 78 pp. ("The contents of this pamphlet is a discussion that took place in the columns of The People, under the head 'As to Politics' during the months of November and December, 1906, and January and February, 1907."—Introduction.)
* DeLeon, Daniel, The Burning Question of Trade Unionism, New York: New York Labor News Co., 1904, pamphlet, 27 pp., 5 cents.
A lecture delivered at Newark, N. J., April 21, 1904.
----, Flash-Lights on the Amsterdam [socialist] Congress (1904), New York: New York Labor News Co., pamphlet, 25 cents.
----, Industrial Unionism, New York, N. Y. Labor News Co., 1918, 32 pp. Contains also an address on the same subject by Eugene V. Debs (delivered at Grand Central Palace, New York, December 10, 1905), pp. 11-32.
----, Preamble of the Industrial Workers of the World, New York: New York Labor News Co., 1905, 48 pp., pamphlet. (Also reprinted in Miners' Magazine, 1905, Oct. 19, 26, Nov. 2, Nov. 9). Address delivered in Minneapolis, July 10, 1905, 5 cents. German and Norwegian translations.