Waste Water Treatment 3Ed (Pb 2020)

I purchased this book for 135 rupees (older) on October 19. Except for four seals, there is no marking. It is really a newer one. I ordered from a done deal. I like this book because of its very simple English, clearly explained the problems of various industrial wastewaters, and compact. (buy old books from done deal instead of buying a new one). But not printed in quality paper, (paper is slightly older). Hereafter I will buy older books only from done deal only.