National School Boards Association. (1976). Declining enrollment. National School Boards Association.
Chicago-Zitierstil (17. Ausg.)National School Boards Association. Declining Enrollment. Evanston, Ill: National School Boards Association, 1976.
MLA-Zitierstil (9. Ausg.)National School Boards Association. Declining Enrollment. National School Boards Association, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.