(1985). Low speed digital signals for use in coal mines: Part 1. Specification for optical coupling. London: BSI.
Chicago Style CitationLow Speed Digital Signals for Use in Coal Mines: Part 1. Specification for Optical Coupling. London: BSI, 1985.
MLA CitationLow Speed Digital Signals for Use in Coal Mines: Part 1. Specification for Optical Coupling. London: BSI, 1985.
Warning: These citations may not always be 100% accurate.