Hand book of fertilizers :
Gustafson, A.F.
Hand book of fertilizers : their sources, makeup, effects and use / A.F. Gustafson. - New Delhi : ABP, c1997. - 160 p. : ill.
Includes index.
Fertilizers.
S633 / .G87
Hand book of fertilizers : their sources, makeup, effects and use / A.F. Gustafson. - New Delhi : ABP, c1997. - 160 p. : ill.
Includes index.
Fertilizers.
S633 / .G87