World Health Organization. (2003). WHO guidelines on good agriculture and collection practices( GACP) for medical plants. World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization. WHO Guidelines on Good Agriculture and Collection Practices( GACP) for Medical Plants. Geneva: World Health Organization, 2003.
Цитирование MLA (8-е изд.)World Health Organization. WHO Guidelines on Good Agriculture and Collection Practices( GACP) for Medical Plants. World Health Organization, 2003.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.