Sudarshana Sharma & Vinit Kumar. (2013). Environmental science: A sustainable approach. Shree publishers.
استشهاد بنمط شيكاغوSudarshana Sharma و Vinit Kumar. Environmental Science: A Sustainable Approach. New Delhi: Shree publishers, 2013.
MLA استشهادSudarshana Sharma و Vinit Kumar. Environmental Science: A Sustainable Approach. Shree publishers, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.