APA (7th ed.) Citation

Beer, M. (1937). Fifty years of international socialism (Cheap ed. (2nd impr.).). George Allen & Unwin.

Chicago Style (17th ed.) Citation

Beer, Max. Fifty Years of International Socialism. Cheap ed. (2nd impr.). London: George Allen & Unwin, 1937.

MLA (9th ed.) Citation

Beer, Max. Fifty Years of International Socialism. Cheap ed. (2nd impr.). George Allen & Unwin, 1937.