World Health Organization. (1997). Strategies for the prevention of blindness in national programmes: A primary health care approach (Second edition.). World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization. Strategies for the Prevention of Blindness in National Programmes: A Primary Health Care Approach. Second edition. Geneva: World Health Organization, 1997.
Цитирование MLA (8-е изд.)World Health Organization. Strategies for the Prevention of Blindness in National Programmes: A Primary Health Care Approach. Second edition. World Health Organization, 1997.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.