APA (7th ed.) Citation

Cole, G. D. H., Cole, M., & Braunthal, J. Socialism and fascism, 1931-1939. Macmillan (London).

Chicago Style (17th ed.) Citation

Cole, George Douglas Howard, Margaret Cole, and Julius Braunthal. Socialism and Fascism, 1931-1939. Macmillan (London).

MLA (8th ed.) Citation

Cole, George Douglas Howard, et al. Socialism and Fascism, 1931-1939. Macmillan (London).