ScienceDirect (Online service), Brown, D. L., & Wardwell, J. M. (1980). New directions in urban-rural migration: The population turnaround in rural America. Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service), David L. Brown, and John M. Wardwell. New Directions in Urban-rural Migration: The Population Turnaround in Rural America. New York: Academic Press, 1980.
MLA (9th ed.) CitationScienceDirect (Online service), et al. New Directions in Urban-rural Migration: The Population Turnaround in Rural America. Academic Press, 1980.
Warning: These citations may not always be 100% accurate.