APA引文

National District Heating Association. Official proceedings, Annual meeting of the National District Heating Association. National District Heating Association.

Chicago Style (17th ed.) Citation

National District Heating Association. Official Proceedings, Annual Meeting of the National District Heating Association. Pittsburgh, Pa.: National District Heating Association.

MLA引文

National District Heating Association. Official Proceedings, Annual Meeting of the National District Heating Association. National District Heating Association.

警告：这些引文格式不一定是100％准确.