Health Research Methodology: A guide for training in Research Methods (2nd ed.). WHO.
Цитирование в стиле Чикаго (17-е изд.)Health Research Methodology: A Guide for Training in Research Methods. 2nd ed. Manila: WHO.
Цитирование MLA (8-е изд.)Health Research Methodology: A Guide for Training in Research Methods. 2nd ed. WHO.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.