Mehrotra R., Ashok Aggarwal, . (2017). Plant Pathology. New Delhi: McGrawHill.
Mehrotra R.S, Ashok Aggarwal, . 2017. Plant Pathology. New Delhi: McGrawHill.
Mehrotra R.S, Ashok Aggarwal, . Plant Pathology. New Delhi: McGrawHill. 2017.