World Health Organization. (1991). Research abstracts: South-East Asia region. WHO.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization. Research Abstracts: South-East Asia Region. New Delhi: WHO, 1991.
Цитирование MLA (8-е изд.)World Health Organization. Research Abstracts: South-East Asia Region. WHO, 1991.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.