vanstone ernest.
Fertilisers and manures / ernest vanstone . - London : Macmillan, 1947. - vii,79 p. : ill, ; 18 cm.
Includes bibliographical references and index.
Fertilizers.
Manures.
631.8 / VAF
Fertilisers and manures / ernest vanstone . - London : Macmillan, 1947. - vii,79 p. : ill, ; 18 cm.
Includes bibliographical references and index.
Fertilizers.
Manures.
631.8 / VAF