Sharma, H. S. (1980). Ravine erosion in India. Concept Pub. Co..
Lua i Stíl Chicago (17ú heag.)Sharma, H. S. Ravine Erosion in India. New Delhi: Concept Pub. Co., 1980.
Lua MLA (8ú heag.)Sharma, H. S. Ravine Erosion in India. Concept Pub. Co., 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.