Columbia subject headings:
Harvard subject headings:
Rural-urban relations--Germany--Halle an der Saale.
Social networks--Germany--Halle an der Saale.
Princeton subject headings:
Case studies.
Community life--Germany--Halle an der Saale--Statistics.
Halle an der Saale (Germany)--Social conditions.
Social networks--Germany--Halle an der Saale--Case studies.
Statistics.