APA

Appleby M., Bintz L. & Tappenden T. (1977). Exhaust emission levels of in-use 1975 & 1976 California automobiles. Warrendale, PA: Society of Automotive Engineers. Paper nr 77 01 69.

Chicago

Appleby MR, Bintz LJ and Tappenden TA. 1977. Exhaust emission levels of in-use 1975 & 1976 California automobiles. Warrendale, PA: Society of Automotive Engineers. Paper nr 77 01 69.

Harvard

Appleby M., Bintz L. and Tappenden T. (1977). Exhaust emission levels of in-use 1975 & 1976 California automobiles. Warrendale, PA: Society of Automotive Engineers. Paper nr 77 01 69.

MLA

Appleby MR, Bintz LJ and Tappenden TA. Exhaust emission levels of in-use 1975 & 1976 California automobiles. Warrendale, PA: Society of Automotive Engineers. Paper nr 77 01 69. 1977.