APA Format
World Health Organization (WHO) . (). Demeton-S-methyl. : Geneva WHO 1997
MLA Format
World Health Organization (WHO) . Demeton-S-methyl. : Geneva WHO 1997,
Australian/Harvard Format
World Health Organization (WHO) . . Demeton-S-methyl. Geneva WHO 1997, 
Warning: These citations may not always be 100% accurate.