(1987). WHO expert committee on biological standardization. World Health Organization.
Chicago Stili AlıntıWHO Expert Committee on Biological Standardization. Geneva: World Health Organization, 1987.
MLA AlıntıWHO Expert Committee on Biological Standardization. World Health Organization, 1987.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..