APA استشهاد

Unger, I. (1970). Essays on the civil war and reconstruction. Holt, Rinehart and Winston, Inc.

استشهاد بنمط شيكاغو

Unger, Irwin. Essays on the Civil War and Reconstruction. New York: Holt, Rinehart and Winston, Inc, 1970.

MLA استشهاد

Unger, Irwin. Essays on the Civil War and Reconstruction. Holt, Rinehart and Winston, Inc, 1970.