ScienceDirect (Online service), Lonsdale, R. E., & Holmes, J. H. (1981). Settlement systems in sparsely populated regions: The United States and Australia. Pergamon Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service), Richard E. Lonsdale, and J. H. Holmes. Settlement Systems in Sparsely Populated Regions: The United States and Australia. New York: Pergamon Press, 1981.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Settlement Systems in Sparsely Populated Regions: The United States and Australia. Pergamon Press, 1981.
Warning: These citations may not always be 100% accurate.