Accidents in the Oklahoma petroleum industry in 1937 /

This report represents the results of work done later under a cooperative agreement between the Bureau of Mines, United States Department of the Interior, and the state of Oklahoma.Supplements a similar report published in May 1939 and issued as the Bureau of Mines, Rept. of investigations 3446. cf. p. 1.At head of title: United States Dept. of the Interior, Harold L. Ickes, secretary. Bureau of mines, R.R. Sayers, acting director ...Mode of access: Internet