APA

Brown D. L., Wardwell J. M., . (1980). New directions in urban-rural migration: the population turnaround in rural America. New York: Academic Press.

Chicago

Brown David L, Wardwell John M, . 1980. New directions in urban-rural migration: the population turnaround in rural America. New York: Academic Press.

Harvard

Brown D. L., Wardwell J. M., . (1980). New directions in urban-rural migration: the population turnaround in rural America. New York: Academic Press.

MLA

Brown David L, Wardwell John M, . New directions in urban-rural migration: the population turnaround in rural America. New York: Academic Press. 1980.