Tohutoro APA (7th ed.)
Zimdahl, R. L. (2006). Agriculture's ethical horizon. Academic Press.
Tohutoru Kātū Chicago (17th ed.)
Zimdahl, Robert L. Agriculture's Ethical Horizon. Amsterdam ; Boston: Academic Press, 2006.
Tohutoro MLA (9th ed.)
Zimdahl, Robert L. Agriculture's Ethical Horizon. Academic Press, 2006.
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