APA Format
World Health Organization (WHO) . (). 2,4-Dichlorophenoxyacetic acid (2,4-D),EHC. : Geneva WHO 1984
MLA Format
World Health Organization (WHO) . 2,4-Dichlorophenoxyacetic acid (2,4-D),EHC. : Geneva WHO 1984,
Australian/Harvard Format
World Health Organization (WHO) . . 2,4-Dichlorophenoxyacetic acid (2,4-D),EHC. Geneva WHO 1984, 
Warning: These citations may not always be 100% accurate.