Letts, C. W. (1999). High performance nonprofit organizations: Managing upstream for greater impact. John wiley and sons.
Цитирование в стиле Чикаго (17-е изд.)Letts, Chtistine W. High Performance Nonprofit Organizations: Managing Upstream for Greater Impact. New York: John wiley and sons, 1999.
Цитирование MLA (9-е изд.)Letts, Chtistine W. High Performance Nonprofit Organizations: Managing Upstream for Greater Impact. John wiley and sons, 1999.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.