The psychology of socialism,
by Henry de Man. translated from the 2d German ed. by Eden & Cedar Paul.

APA Citation

Man, H. de., Paul, C., Paul, E. (1928). The psychology of socialism. New York: H. Holt and company.

MLA Citation

Man, Hendrik de, 1885-1953, Cedar Paul, and Eden Paul. The Psychology of Socialism. New York: H. Holt and company, 1928.

Warning: These citations may not always be complete (especially for serials).