APA-čujuhus (7. p.)
ebrary, Inc, & Singh, B. P. (2013). Biofuel crop sustainability. Wiley-Blackwell.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Bharat P. Singh. Biofuel Crop Sustainability. Ames, Iowa: Wiley-Blackwell, 2013.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Bharat P. Singh. Biofuel Crop Sustainability. Wiley-Blackwell, 2013.
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