APA (7th ed.) Citation

Nichols, I. C. (1972). The European Pentarchy and the Congress of Verona, 1822. Springer Netherlands.

Chicago Style (17th ed.) Citation

Nichols, Irby C. The European Pentarchy and the Congress of Verona, 1822. Dordrecht: Springer Netherlands, 1972.

MLA (9th ed.) Citation

Nichols, Irby C. The European Pentarchy and the Congress of Verona, 1822. Springer Netherlands, 1972.