Smith, R. M. (1969). Teacher dignosis of educational difficulties. Charles E.Merrill.
芝加哥风格引文Smith, Robert M. Teacher Dignosis of Educational Difficulties. Columbus: Charles E.Merrill, 1969.
MLA引文Smith, Robert M. Teacher Dignosis of Educational Difficulties. Charles E.Merrill, 1969.
警告：这些引文格式不一定是100％准确.