Experiments on multiple short-delay blasting of coal (in two parts) :
part II /
by John Nagy, Irving Hartmann, F.P. Christofel, and E.C. Seiler.

APA Citation

Seiler, E. C., Christofel, F. P., Hartmann, I., Nagy, J., International Conference of Directors of Mine Safety Research (7th : 1952 : Buxton, E. (1952). Experiments on multiple short-delay blasting of coal (in two parts): part II. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

International Conference of Directors of Mine Safety Research (7th : 1952 : Buxton, E, et al.. Experiments On Multiple Short-delay Blasting of Coal (in Two Parts): Part II. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1952.