Clark, E. (2019). Key government reports. SNOVA Nova Science Publishers, Inc..
芝加哥风格引文Clark, Ernest. Key Government Reports. New York: SNOVA Nova Science Publishers, Inc., 2019.
MLA引文Clark, Ernest. Key Government Reports. SNOVA Nova Science Publishers, Inc., 2019.
警告：这些引文格式不一定是100％准确.