Cita APA (7th ed.)

Letts, C. W. (1999). High performance nonprofit organizations: Managing upstream for greater impact. John wiley and sons.

Cita Chicago (17th ed.)

Letts, Chtistine W. High Performance Nonprofit Organizations: Managing Upstream for Greater Impact. New York: John wiley and sons, 1999.

Cita MLA (9th ed.)

Letts, Chtistine W. High Performance Nonprofit Organizations: Managing Upstream for Greater Impact. John wiley and sons, 1999.