Socialism and philosophy,
by Antonio Labriola; tr. by Ernest Untermann from the 3d Italian ed., rev. and amplified by the author.
Labriola, A., Untermann, E. (1907). Socialism and philosophy. Chicago: C. H. Kerr & company.
Labriola, Antonio, 1843-1904, and Ernest Untermann. Socialism And Philosophy. Chicago: C. H. Kerr & company, 1907.
Warning: These citations may not always be complete (especially for serials).