Barrett, R. S. (1929). The care of the unmarried mother.
Chicagoスタイル(17版)引用形式Barrett, Robert South. The Care of the Unmarried Mother. Alexandria, Va, 1929.
MLA(8版)引用形式Barrett, Robert South. The Care of the Unmarried Mother. 1929.
警告: この引用は必ずしも正確ではありません.