Foundation Center. (1987). National data book (11th ed.). Foundation Center.
Chicagoスタイル(17版)引用形式Foundation Center. National Data Book. 11th ed. New York: Foundation Center, 1987.
MLA(9版)引用形式Foundation Center. National Data Book. 11th ed. Foundation Center, 1987.
警告: この引用は必ずしも正確ではありません.