ScienceDirect (Online service) & Trewartha, G. T. (1978). The More developed realm: A geography of its population. Pergamon Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Glenn Thomas Trewartha. The More Developed Realm: A Geography of Its Population. Oxford ; New York: Pergamon Press, 1978.
MLA (9th ed.) CitationScienceDirect (Online service) and Glenn Thomas Trewartha. The More Developed Realm: A Geography of Its Population. Pergamon Press, 1978.
Warning: These citations may not always be 100% accurate.