Fertilizing for maximum yield / G.W. Cooke. Cooke, G. W. (George William), 1916- Fertilizers. 631.81 19 COF Includes index. Bibliography: p. 440-456. New York : Macmillan ; Toronto : Collier Macmillan Canada, 1982. 1982. 1982 Text xiv, 465 p. : eng