TY - CHAP A1 - Seibel, Wolfgang A1 - Anheier, Helmut K. T1 - Sociological and Political Science Approaches to the Nonprofit Sector T2 - The Third Sector: Comparative Studies of Nonprofit Organizations Y1 - 1990 SN - 978-3110117134 SP - 7 EP - 20 PB - De Gruyter CY - Berlin [u.a.] ER -