APA
Qin W., DU X. & Jiang K. (20120820). [High-performance liquid chromatography for determination of urea in air of work place]. : Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases.
Chicago
Qin Wen-hua, DU Xiao-yu and Jiang Kai-you. 20120820. [High-performance liquid chromatography for determination of urea in air of work place]. : Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases.
Harvard
Qin W., DU X. and Jiang K. (20120820). [High-performance liquid chromatography for determination of urea in air of work place]. : Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases.
MLA
Qin Wen-hua, DU Xiao-yu and Jiang Kai-you. [High-performance liquid chromatography for determination of urea in air of work place]. : Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases. 20120820.