APA
World Health Organization, . (1989). WHO expert committee on biological standardization. 29th report. W.H.O., Geneva: .
Chicago
World Health Organization, . 1989. WHO expert committee on biological standardization. 29th report. W.H.O., Geneva: .
Harvard
World Health Organization, . (1989). WHO expert committee on biological standardization. 29th report. W.H.O., Geneva: .
MLA
World Health Organization, . WHO expert committee on biological standardization. 29th report. W.H.O., Geneva: . 1989.