APA (7th ed.) Citation

Gierke, O. v., Troeltsch, E., & Barker, E. (1950). Natural law and the theory of society, 1500-1800. The University press.

Chicago Style (17th ed.) Citation

Gierke, Otto von, Ernst Troeltsch, and Ernest Barker. Natural Law and the Theory of Society, 1500-1800. Cambridge [England]: The University press, 1950.

MLA (9th ed.) Citation

Gierke, Otto von, et al. Natural Law and the Theory of Society, 1500-1800. The University press, 1950.