Cita APA (7a ed.)

World Health Organization. (1991). Research abstracts: South-East Asia region. WHO.

Cita Chicago Style (17a ed.)

World Health Organization. Research Abstracts: South-East Asia Region. New Delhi: WHO, 1991.

Cita MLA (8a ed.)

World Health Organization. Research Abstracts: South-East Asia Region. WHO, 1991.