Compressibility and bearing strength of coal in place :
tests of lateral compression of Pittsburgh coal bed /
by H.P. Greenwald, S. Avins, and G.S. Rice.

APA Citation

Greenwald, H. P. (Harold Putnam)., Rice, G. S., Avins, S., United States. Bureau of Mines. (1933). Compressibility and bearing strength of coal in place: tests of lateral compression of Pittsburgh coal bed. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Greenwald, H. P. (Harold Putnam), 1893-, G. S Rice, S Avins, and United States. Bureau of Mines. Compressibility And Bearing Strength of Coal In Place: Tests of Lateral Compression of Pittsburgh Coal Bed. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1933.