Puri, Amar Nath. Soils, their physics and chemistry. With a foreword by Firman A. Bear. - New York, Reinhold Pub. Corp., 1949. - xv, 550 p. illus. 24 cm. LCCN: agr49000474 Subjects--Topical Terms: Soils. LC Class. No.: S591 / .P8 Dewey Class. No.: 631.4 National Agricultural Library Call No.: 56.4 / P97