Clegg, W. P., & Styring, J. S. (1968). British nationalised shipping, 1947-1968. A. M. Kelley.
芝加哥风格引文Clegg, William Paul, 与 John S. Styring. British Nationalised Shipping, 1947-1968. New York: A. M. Kelley, 1968.
MLA引文Clegg, William Paul, 与 John S. Styring. British Nationalised Shipping, 1947-1968. A. M. Kelley, 1968.
警告：这些引文格式不一定是100％准确.