Karlen, D. L. (2014). Cellulosic energy cropping systems. Wiley.
Tohutoru Kātū Chicago (17th ed.)Karlen, D. L. Cellulosic Energy Cropping Systems. Chichester, England: Wiley, 2014.
Tohutoro MLA (9th ed.)Karlen, D. L. Cellulosic Energy Cropping Systems. Wiley, 2014.
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