Taylor, R. J., Jackson, J. S., & Quick, A. D. (1982). The frequency of social support among black Americans: Preliminary findings from the National Survey of Black Americans. Urban Research Review, 8(1-4), 11.
Dunkle, R., & Eckert, J. K. (1982). The differential use of health services among two groups of urban hotel dwellers. Health and Social Work, 7(7), 123-130.