APA Format
World Health Organization (WHO) . (). Rapid laboratory techniques for the diagnosis of viral infections, TRS.661. : Geneva WHO 1981
MLA Format
World Health Organization (WHO) . Rapid laboratory techniques for the diagnosis of viral infections, TRS.661. : Geneva WHO 1981,
Australian/Harvard Format
World Health Organization (WHO) . . Rapid laboratory techniques for the diagnosis of viral infections, TRS.661. Geneva WHO 1981, 
Warning: These citations may not always be 100% accurate.