Brittin, W. E., West, R. E., & Williams, R. H. (1972). Air and water pollution: Proceedings of the summer workshop, August 3 to August 15, 1970, University of Colorado. Colorado Associated University Press.
Chicago-referens (17:e uppl.)Brittin, Wesley Emil, Ronald E. West, och Robert H. Williams. Air and Water Pollution: Proceedings of the Summer Workshop, August 3 to August 15, 1970, University of Colorado. Boulder,: Colorado Associated University Press, 1972.
MLA-referens (8:e uppl.)Brittin, Wesley Emil, et al. Air and Water Pollution: Proceedings of the Summer Workshop, August 3 to August 15, 1970, University of Colorado. Colorado Associated University Press, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.