World Health Organization. (1998). Research abstracts South- East Asia region. WHO.
Cita Chicago Style (17a ed.)World Health Organization. Research Abstracts South- East Asia Region. New Delhi: WHO, 1998.
Cita MLA (8a ed.)World Health Organization. Research Abstracts South- East Asia Region. WHO, 1998.
Precaución: Estas citas no son 100% exactas.