Kumar,Pushpam. (2004). Economics of soil erosion: Issues and imperatives from India. Concept Publishing Company.
استشهاد بنمط شيكاغوKumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. New Delhi: Concept Publishing Company, 2004.
MLA استشهادKumar,Pushpam. Economics of Soil Erosion: Issues and Imperatives from India. Concept Publishing Company, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.