APA
W.H.O Tech.Rep series no.741, . (1987). WHO Expect committee on Biological Standardization 37 th report. W.H.O, Geneva: .
Chicago
W.H.O Tech.Rep series no.741, . 1987. WHO Expect committee on Biological Standardization 37 th report. W.H.O, Geneva: .
Harvard
W.H.O Tech.Rep series no.741, . (1987). WHO Expect committee on Biological Standardization 37 th report. W.H.O, Geneva: .
MLA
W.H.O Tech.Rep series no.741, . WHO Expect committee on Biological Standardization 37 th report. W.H.O, Geneva: . 1987.