TY  - BOOK
AU  - Caudle, R.D.
AU  - Caudle, R.D., coaut.Clark, G.B., coaut.
TI  - Stresses around mine opening in some simple geologic struct-ures / by R.D. Caudle, G.B. Clark
CY  - Urbana, Illinois : University of Illinois, Engineering Experiment Station
ER  -