Tisdale, Samuel L. Soil fertility and fertilizers / Samuel L. Tisdale, Werner L. Nelson and James D. Beaton. - 5th ed / . - New Delhi : Prentice Hall of India , 2002. - xiv,634p. : ill.,figs. ; 25cm . NULL ISBN: 8120309758 USD13.45 Subjects--Index Terms: SOIL FERTILITY Dewey Class. No.: 631.422 / TIS/S