APA

Harff B., .No lessons learned from the holocaust? assessing risks of genocide and political mass murder since 1955. : .

Chicago

Harff Barbara, .No lessons learned from the holocaust? assessing risks of genocide and political mass murder since 1955. : .

Harvard

Harff B., .No lessons learned from the holocaust? assessing risks of genocide and political mass murder since 1955. : .

MLA

Harff Barbara, .: . .