Bituminous coal code.
Subtitle: Promulgated June 21, 1937.
Publisher: U.S. Govt. Print. Off.
Published: 1937
Place of publication: [Washington
Language: eng
Number of pages: 12
Subjects: Bituminous coal.; Coal trade -- United States.
Notes: At head of title: United States Department of the interior. National bituminous coal commission, Washington, D.C.