Παραπομπή σε μορφή APA (7η εκδ.)

De Weerdt, E. A. H. (1935). Five years of child welfare under the children's code in Wisconsin, 1929-1934. Wisconsin Conference of Social Work.

Παραπομπή σε μορφή Chicago (17η εκδ.)

De Weerdt, Esther Amelia Hurley. Five Years of Child Welfare Under the Children's Code in Wisconsin, 1929-1934. Madison, Wis.: Wisconsin Conference of Social Work, 1935.

Παραπομπή σε μορφή MLA (8th εκδ.)

De Weerdt, Esther Amelia Hurley. Five Years of Child Welfare Under the Children's Code in Wisconsin, 1929-1934. Wisconsin Conference of Social Work, 1935.