Hudson Institute, Conference on the Future of Germany, & Geipel, G. L. (1990). The Future of Germany. Hudson Institute.
Citazione stile Chigago Style (17a edizione)Hudson Institute, Conference on the Future of Germany, e Gary L. Geipel. The Future of Germany. Indianapolis, Ind: Hudson Institute, 1990.
Citatione MLA (9a ed.)Hudson Institute, et al. The Future of Germany. Hudson Institute, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.