Prasad,R. (2013). GATE 2020: Chemical Engineering. Khanna Pub.
Chicago-čujuhus (17. p.)Prasad,R. GATE 2020: Chemical Engineering. New Delhi: Khanna Pub, 2013.
MLA-čujuhus (9. p.)Prasad,R. GATE 2020: Chemical Engineering. Khanna Pub, 2013.
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