APA (7th ed.) Citation

Claessen, H. J. M., & Skalník, P. (1981). The Study of the state. Mouton.

Chicago Style (17th ed.) Citation

Claessen, H. J. M., and Peter Skalník. The Study of the State. The Hague ; New York: Mouton, 1981.

MLA (9th ed.) Citation

Claessen, H. J. M., and Peter Skalník. The Study of the State. Mouton, 1981.