(1990). The third sector: Comparative studies of nonprofit organizations. Walter de Gruyter.
Citazione stile Chigago Style (17a edizione)The Third Sector: Comparative Studies of Nonprofit Organizations. Berlin ; New York: Walter de Gruyter, 1990.
Citatione MLA (9a ed.)The Third Sector: Comparative Studies of Nonprofit Organizations. Walter de Gruyter, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.