Environmental studies /
Singh, Raj Kumar,
Environmental studies / Raj Kumar Singh. - xvi, 150 pages : illustrations ; 23 cm.
Includes index.
9780071072656 (paperback) RM28.24 0071072659 (paperback)
Environmental sciences.
Human ecology.
Pollution.
Environmental studies / Raj Kumar Singh. - xvi, 150 pages : illustrations ; 23 cm.
Includes index.
9780071072656 (paperback) RM28.24 0071072659 (paperback)
Environmental sciences.
Human ecology.
Pollution.
