National Heart and Lung Institute. (1975). Report of the Director of the National Heart and Lung Institute. National Heart and Lung Institute.
芝加哥风格引文National Heart and Lung Institute. Report of the Director of the National Heart and Lung Institute. Bethesda, Md.: National Heart and Lung Institute, 1975.
MLA引文National Heart and Lung Institute. Report of the Director of the National Heart and Lung Institute. National Heart and Lung Institute, 1975.
警告：这些引文格式不一定是100％准确.