APA
Kelsen Hans,, . (1946). Society and nature : A sociological inquiry. London: Trubner & Company Ltd.
Chicago
Kelsen Hans,, . 1946. Society and nature : A sociological inquiry. London: Trubner & Company Ltd.
Harvard
Kelsen Hans,, . (1946). Society and nature : A sociological inquiry. London: Trubner & Company Ltd.
MLA
Kelsen Hans,, . Society and nature : A sociological inquiry. London: Trubner & Company Ltd. 1946.