CANOPY :a computer program for the structural analysis of space-frame protective canopies

Author:	Sawyer, Stephen Gerard.
Year:	1972
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8546
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	8546
Subjects:	Mine roof bolting--Mathematical models
	Mine timbering--Mathematical models
Link:	https://hdl.handle.net/2027/mdp.39015078515932