Hardwood tree planting experiments on strip coal mine spoil banks of Indiana
Denuyl, Daniel
Hardwood tree planting experiments on strip coal mine spoil banks of Indiana - Lafayette 1955 - 16 p. - No. 619; Purdue Agricultural .
Hardwood tree planting experiments on strip coal mine spoil banks of Indiana - Lafayette 1955 - 16 p. - No. 619; Purdue Agricultural .