International Chamber of Commerce. (1991). Guide to Effective Environmental Auditing: научное издание.
芝加哥风格引文International Chamber of Commerce. Guide to Effective Environmental Auditing: научное издание. 1991.
MLA引文International Chamber of Commerce. Guide to Effective Environmental Auditing: научное издание. 1991.
警告：这些引文格式不一定是100％准确.