Urban, R. W., Graham, D. J., & Schwartz, S. H. (1978). Performance tests of four selected oil spill skimmers. Industrial Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency.
Chicago Style (17th ed.) CitationUrban, Robert W., Douglas J. Graham, and Sol H. Schwartz. Performance Tests of Four Selected Oil Spill Skimmers. Cincinnati, Ohio: Industrial Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency, 1978.
MLA (9th ed.) CitationUrban, Robert W., et al. Performance Tests of Four Selected Oil Spill Skimmers. Industrial Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency, 1978.
Warning: These citations may not always be 100% accurate.