Prasad, Noorlabettu Krishna. Downstream process technology : a new horizon in biotechnology / Nooralabettu Krichna Prasad. - ed. - New Delhi : PHI Learning, 2010. - xi,370 p.ages : illustrations ; cm. Includes index. ISBN: 9788120340404 : $30.00 Subjects--Topical Terms: Biotechnology.