The statesman's book of John of Salisbury, being the fourth, fifth, and sixth books, and selections from the seventh and eighth books, of the Policraticus.
Translated into English with an introd. by John Dickinson.

APA Citation

John, o. Salisbury., Dickinson, J. (1963). The statesman's book of John of Salisbury, being the fourth, fifth, and sixth books, and selections from the seventh and eighth books, of the Policraticus. New York: Russell & Russell.

MLA Citation

John, of Salisbury, Bishop of Chartres, -1180, and John Dickinson. The Statesman's Book of John of Salisbury, Being the Fourth, Fifth, And Sixth Books, And Selections From the Seventh And Eighth Books, of the Policraticus. New York: Russell & Russell, 1963.

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