Phosphates and superphosphate /
Gray, A N
Phosphates and superphosphate / by A. N. Gray. - London : Pub. under the auspices of the International superphosphate manufacturers' association by E. T. Heron & co., ltd. , 1944. - 416 p.: ill. ; 18 cm.
"Second edition." Map on lining-papers. "Corrigenda" slip inserted before p. 9.
Phosphates.
631.85 / GRP
Phosphates and superphosphate / by A. N. Gray. - London : Pub. under the auspices of the International superphosphate manufacturers' association by E. T. Heron & co., ltd. , 1944. - 416 p.: ill. ; 18 cm.
"Second edition." Map on lining-papers. "Corrigenda" slip inserted before p. 9.
Phosphates.
631.85 / GRP
