APA

Shukla R., .Plant Ecology and Soil Science. New Delhi: S.Chand Company.

Chicago

Shukla R.S, .Plant Ecology and Soil Science. New Delhi: S.Chand Company.

Harvard

Shukla R., .Plant Ecology and Soil Science. New Delhi: S.Chand Company.

MLA

Shukla R.S, .New Delhi: S.Chand Company. .