Kumar,Pushpam. (2004). Economics of soil erosion: Issues and imperatives from India. Concept Publishing Company.
Styl cytowania ChicagoKumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. New Delhi: Concept Publishing Company, 2004.
Styl cytowania MLAKumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. Concept Publishing Company, 2004.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..