Collings Gilleart H.
Commercial fertilizers : their source and use / Gilleart H. Collings - 5th ed. - Philadelphia : Blakiston, 1950. - xi, 522 p. : ill. ; 23 cm.
Includes index.
Bibliography: p. 475-498
631.8 / COC
Commercial fertilizers : their source and use / Gilleart H. Collings - 5th ed. - Philadelphia : Blakiston, 1950. - xi, 522 p. : ill. ; 23 cm.
Includes index.
Bibliography: p. 475-498
631.8 / COC