"Politics as Vocation" has been translated into English at least three m. The first time by Hans Gerth and C. Wright Mills, and published as part of From Max Weber (1946), secondly in The Vocation Lectures, translated by Rodney Livingstone and Edited by David Owen and Tracy Strong (2004), and most recently in Weber's Rationalism and Modern Society Translated and Edited by Tony Waters and Dagmar Waters (Palgrave MacMillan 2015).
Weber, Max (1946). From Max Weber, tr. and ed. by H. H. Gerth, and C. Wright Mills. New York: Free press.
Weber, Max (2004). The Vocation Lectures, tr. by Rodney LIvingstone, and Edited by David Owen and Tracy Strong (Illinois: Hackett Books).
Weber, Max (2015). Weber's Rationalism and Modern Society. Translated and Edited by Tony Waters and Dagmar Waters (New York: Palgrave Macmillan).