Preparation of thin sections of coal /
by R. Thiessen, G. C. Sprunk, and H. J. O'Donnell.

APA Citation

Thiessen R., O'Donnell, H. J., Sprunk, G. C., United States. Bureau of Mines. (1938). Preparation of thin sections of coal. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Thiessen R, H. J O'Donnell, G. C Sprunk, and United States. Bureau of Mines. Preparation of Thin Sections of Coal. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1938.

Warning: These citations may not always be complete (especially for serials).