Hobhouse, H. (1992). Seeds of change: five plants that transformed: Mankind. Papermac.
Chicago Style (17. basım) AtıfHobhouse, Henry. Seeds of Change: Five Plants That Transformed: Mankind. London: Papermac, 1992.
MLA (9th ed.) AtıfHobhouse, Henry. Seeds of Change: Five Plants That Transformed: Mankind. Papermac, 1992.
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