APA Format
World Health Organization (WHO) . (). Ecology and control of vectors in public health, TRS.561. : Geneva WHO 11975
MLA Format
World Health Organization (WHO) . Ecology and control of vectors in public health, TRS.561. : Geneva WHO 11975,
Australian/Harvard Format
World Health Organization (WHO) . . Ecology and control of vectors in public health, TRS.561. Geneva WHO 11975, 
Warning: These citations may not always be 100% accurate.