APA (7th ed.) Citation

Humphries, M. (1990). Platinum group metals use in the world auto industry: Effects of tougher tailpipe emission standards. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Humphries, Marc. Platinum Group Metals Use in the World Auto Industry: Effects of Tougher Tailpipe Emission Standards. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1990.

MLA (9th ed.) Citation

Humphries, Marc. Platinum Group Metals Use in the World Auto Industry: Effects of Tougher Tailpipe Emission Standards. Congressional Research Service, Library of Congress, 1990.