Παραπομπή σε μορφή APA (7η εκδ.)

Carl J. Friedrich, R. G. M. From the declaration of independence to the constitution The roots of American constitutionalism. The Liberal Arts Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Carl J. Friedrich, Robert G. McCloskey. From the Declaration of Independence to the Constitution The Roots of American Constitutionalism. The Liberal Arts Press.

Παραπομπή σε μορφή MLA (8th εκδ.)

Carl J. Friedrich, Robert G. McCloskey. From the Declaration of Independence to the Constitution The Roots of American Constitutionalism. The Liberal Arts Press.