Bernal, J. D. (1954). Science in history. Cambridge, Mass: M.I.T. Press.
Trích dẫn kiểu ChicagoBernal, J. D. Science in History. Cambridge, Mass: M.I.T. Press, 1954.
MLA引文Bernal, J. D. Science in History. Cambridge, Mass: M.I.T. Press, 1954.
警告：這些引文格式不一定是100％准確.