ScienceDirect (Online service), Newman, P. J., & Agg, A. R. (1988). Environmental protection of the North Sea. Heinemann Professional Publishing.
Chicago Style (17th ed.) CitationScienceDirect (Online service), P. J. Newman, and A. R. Agg. Environmental Protection of the North Sea. Oxford, England: Heinemann Professional Publishing, 1988.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Environmental Protection of the North Sea. Heinemann Professional Publishing, 1988.
Warning: These citations may not always be 100% accurate.