APA-čujuhus (7. p.)
Patra, M. N., & Singha, R. K. (2013). Basic environmental engineering and elementary biology. Aryan Publising House.
Chicago-čujuhus (17. p.)
Patra, Monindra Nath, juo Rahul Kumar Singha. Basic Environmental Engineering and Elementary Biology. Kolkata: Aryan Publising House, 2013.
MLA-čujuhus (9. p.)
Patra, Monindra Nath, juo Rahul Kumar Singha. Basic Environmental Engineering and Elementary Biology. Aryan Publising House, 2013.
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