APA aipamena

Kumar,Pushpam. (2004). Economics of soil erosion: Issues and imperatives from India. Concept Publishing Company.

Chicago Style aipamena

Kumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. New Delhi: Concept Publishing Company, 2004.

MLA aipamena

Kumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. Concept Publishing Company, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.