Sen, R. K. Environmental problems and challenges: Recent issues and opportunities : a festschrift for Professor Raj Kumar Sen.
استشهاد بنمط شيكاغوSen, Raj Kumar. Environmental Problems and Challenges: Recent Issues and Opportunities : A Festschrift for Professor Raj Kumar Sen.
MLA استشهادSen, Raj Kumar. Environmental Problems and Challenges: Recent Issues and Opportunities : A Festschrift for Professor Raj Kumar Sen.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.