APA

Walsh M., Nussbaum B., . (1978). Emissions from catalyst cars beyond 50 000 miles and the implications for the federal motor vehicle control program. Warrendale, PA: SAE Technical Paper Series nr 78 00 27.

Chicago

Walsh MP, Nussbaum BD, . 1978. Emissions from catalyst cars beyond 50 000 miles and the implications for the federal motor vehicle control program. Warrendale, PA: SAE Technical Paper Series nr 78 00 27.

Harvard

Walsh M., Nussbaum B., . (1978). Emissions from catalyst cars beyond 50 000 miles and the implications for the federal motor vehicle control program. Warrendale, PA: SAE Technical Paper Series nr 78 00 27.

MLA

Walsh MP, Nussbaum BD, . Emissions from catalyst cars beyond 50 000 miles and the implications for the federal motor vehicle control program. Warrendale, PA: SAE Technical Paper Series nr 78 00 27. 1978.