Παραπομπή σε μορφή APA (7η εκδ.)

Strong, C. F. (1973). Modern political constitutions: An introduction to the comparative study of their history and existing forms (8th revised and enlarged, ed.). Sidgwick and Jackson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Strong, C. Frederick. Modern Political Constitutions: An Introduction to the Comparative Study of Their History and Existing Forms. 8th revised and enlarged, ed. London: Sidgwick and Jackson, 1973.

Παραπομπή σε μορφή MLA (9th εκδ.)

Strong, C. Frederick. Modern Political Constitutions: An Introduction to the Comparative Study of Their History and Existing Forms. 8th revised and enlarged, ed. Sidgwick and Jackson, 1973.