Molding sands of Wisconsin,
Trainer, David W.
Molding sands of Wisconsin, by David W. Trainer, jr. - Madison, Wis., Published by the state [Democratic printing company] 1928. - 103 p. incl. illus., tables, diagrs. 24-1/2 cm. - Wisconsin. Geological and Natural History Survey. Bulletin Economic series no. 69; no. 23 .
Bibliography: p. 13.
gs 28000347
Sand.
TS236 / .T63 1928
Molding sands of Wisconsin, by David W. Trainer, jr. - Madison, Wis., Published by the state [Democratic printing company] 1928. - 103 p. incl. illus., tables, diagrs. 24-1/2 cm. - Wisconsin. Geological and Natural History Survey. Bulletin Economic series no. 69; no. 23 .
Bibliography: p. 13.
gs 28000347
Sand.
TS236 / .T63 1928