APA Edition Citation

Palmer, A. (1985). Penguin dictionary of twentieth century history 1900-1982 (2nd ed.). Penguin books.

Chicago Edition Citation

Palmer, Alan. Penguin Dictionary of Twentieth Century History 1900-1982. 2nd ed. England: Penguin books, 1985.

MLA Edition Citation

Palmer, Alan. Penguin Dictionary of Twentieth Century History 1900-1982. 2nd ed. Penguin books, 1985.