MSA permissible methane spotter /
by Staff, Audio-Visual Services-Education and Training.

APA Citation

United States. Mining Enforcement and Safety Administration. (1975). MSA permissible methane spotter. [Washington]: U. S. Dept. of the Interior, Mining Enforcement and Safety Administration.

MLA Citation

United States. Mining Enforcement and Safety Administration. MSA Permissible Methane Spotter. [Washington]: U. S. Dept. of the Interior, Mining Enforcement and Safety Administration, 1975.

Warning: These citations may not always be complete (especially for serials).