Tohutoro APA (7th ed.)
Green, T. H. (1967). The principles of political obligation. University of Michigan Press.
Tohutoru Kātū Chicago (17th ed.)
Green, Thomas Hill. The Principles of Political Obligation. USA: University of Michigan Press, 1967.
Tohutoro MLA (9th ed.)
Green, Thomas Hill. The Principles of Political Obligation. University of Michigan Press, 1967.
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