Gustafson, A. F. Handbook of fertilizers : their sources, make-up, effects and use / A. F. Gustafson. - 3d ed. - India, Agrobios, 2012 - 172 p. : ills. ; 21 cm. Includes index. ISBN: 8177540319 9788177540314 LCCN: 39004009 Subjects--Topical Terms: Fertilizers Dewey Class. No.: 630 / GUH