APA (7th ed.) Citation

(1985). Sulphur dioxide: Environmental and technical information for problem spills. Minister of Supply and Services Canada.

Chicago Style (17th ed.) Citation

Sulphur Dioxide: Environmental and Technical Information for Problem Spills. Ottawa: Minister of Supply and Services Canada, 1985.

MLA (9th ed.) Citation

Sulphur Dioxide: Environmental and Technical Information for Problem Spills. Minister of Supply and Services Canada, 1985.