Greenstein, F. I. (2012). The Presidential Difference: Leadership Style from FDR to Barack Obama - Third Edition. Princeton University Press. https://doi.org/10.1515/9781400833696
Chicago-Zitierstil (17. Ausg.)Greenstein, Fred I. The Presidential Difference: Leadership Style from FDR to Barack Obama - Third Edition. Princeton, NJ: Princeton University Press, 2012. https://doi.org/10.1515/9781400833696.
MLA-Zitierstil (9. Ausg.)Greenstein, Fred I. The Presidential Difference: Leadership Style from FDR to Barack Obama - Third Edition. Princeton University Press, 2012. https://doi.org/10.1515/9781400833696.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.