Zawadzki, R. F. (1962). Hayes practical science lessons and experiments: Elementary book 4. Hayes School Publishing.
芝加哥风格引文Zawadzki, Robert F. Hayes Practical Science Lessons and Experiments: Elementary Book 4. Wilkingburg, PA: Hayes School Publishing, 1962.
MLA引文Zawadzki, Robert F. Hayes Practical Science Lessons and Experiments: Elementary Book 4. Hayes School Publishing, 1962.
警告：这些引文格式不一定是100％准确.