Sievers. Civil Society, Philanthropy, and the Fate of the Commons. University Press of New England.
Citazione stile Chigago Style (17a edizione)Sievers. Civil Society, Philanthropy, and the Fate of the Commons. University Press of New England.
Citatione MLA (9a ed.)Sievers. Civil Society, Philanthropy, and the Fate of the Commons. University Press of New England.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.