Safeguarding workmen at oil derricks.

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Bibliographic Details
Online Access:	Full Text (via ProQuest)
Other Authors:	Miller, H. C.
Format:	Government Document eBook
Language:	English
Published:	[Washington?] : U.S. G.P.O., 1927.
Series:	Mines Bur. Bull. No. 272.
Subjects:	Cranes, derricks, etc. Petroleum.

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Full Text (via ProQuest)

Holdings details from Online
Call Number:	C22.3-272
C22.3-272	Available