| publisher = Palgrave Macmillan
  | edition = 2nd
  | isbn = 978-1-4039-1812-3
  
  }}
* {{cite book
  | last = Von Papen
  | first = Franz
  | author-link = Franz von Papen
  | year = 1953
  | title = Memoirs
  | url = https://archive.org/details/memoirs0000fran
  | publisher = Dutton
  | location = London
  | asin = B0007DRFHQ
  
  }}
* {{cite web
  | title = Röhm-Putsch
  | language = Tysk
  | publisher = Deutsches Historisches Museum (DHM)
  | url = http://www.dhm.de/lemo/html/nazi/innenpolitik/roehm/
  | access-date = 2012-05-15
  | ref = {{sfnRef|Röhm-Putsch}}
  | archive-date = 11. august 2014
  | archive-url = https://web.archive.org/web/20140811150155/http://www.dhm.de/lemo/html/nazi/innenpolitik/roehm/
  |url-status=live
  }}
{{refend}}
Filosofi Historie