Ingrao, C. W. (1987). The Hessian mercenary state: Ideas, institutions, and reform under Frederick II, 1760-1785. Cambridge University Press. https://doi.org/10.1017/CBO9780511528873
Chicago-Zitierstil (17. Ausg.)Ingrao, Charles W. The Hessian Mercenary State: Ideas, Institutions, and Reform Under Frederick II, 1760-1785. Cambridge: Cambridge University Press, 1987. https://doi.org/10.1017/CBO9780511528873.
MLA-Zitierstil (9. Ausg.)Ingrao, Charles W. The Hessian Mercenary State: Ideas, Institutions, and Reform Under Frederick II, 1760-1785. Cambridge University Press, 1987. https://doi.org/10.1017/CBO9780511528873.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.