Population reports.
- Baltimore : Population Information Program, 1992.
- v : ill ; 28 cm.
- Vol. 20, Mar-Nov.; Vol. 10, Mar, Jul, Sept, Nov.; Vol. 11,May, Jul, Nov.; Vol. 12, May, Sept, Dec.; Vol. 13, Jan, May,; Vol. 17, Dec.; Vol. 27 no 4 (1999);vol.30 nos 2-4(2002);vol.31 no 2,4(2003);vol.32 nos 1-2(2004).