Ripley, H. (1983). Police Forces of Great Britan and Ireland: Their amalgamations and their buttons / by Howard Ripley. Hazel.
Chicago-Zitierstil (17. Ausg.)Ripley, Howard. Police Forces of Great Britan and Ireland: Their Amalgamations and Their Buttons / by Howard Ripley. Oxfordshire: Hazel, 1983.
MLA-Zitierstil (8. Ausg.)Ripley, Howard. Police Forces of Great Britan and Ireland: Their Amalgamations and Their Buttons / by Howard Ripley. Hazel, 1983.
警告：這些引文格式不一定是100％准確.