Tohutoro APA (7th ed.)
Barthwal, R. (2014). Environmental impact assessment (2nd ed.). New Age International.
Tohutoru Kātū Chicago (17th ed.)
Barthwal, R.R. Environmental Impact Assessment. 2nd ed. Kolkata: New Age International, 2014.
Tohutoro MLA (9th ed.)
Barthwal, R.R. Environmental Impact Assessment. 2nd ed. New Age International, 2014.
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