TY - BOOK AU - De,Anil Kumar AU - De,Arnab Kumar TI - Textbook of environmental science: for undergraduate students (arts., commerce, science, medicine & engineering) of all universities SN - 9789381714546 (pbk.) U1 - 372.357 22 PY - 2014/// CY - New Delhi PB - Scientific International KW - Environmental sciences KW - Text book N1 - Includes bibliographical references and index ER -