1. The legal disabilities of natural children justified biologically and historically Author(s): Spitzka, E. C. (Edward Charles), 1852-1914, author Publication: St. Louis : [publisher not identified], 1899 Subject(s): IllegitimacyFather-Child RelationsSibling Relations
2. The unmarried mother: a study of five hundred cases Author(s): Kammerer, Percy Gamble, author Publication: Boston : Little, Brown, and Company, 1918 Subject(s): IllegitimacyMothersSocioeconomic Factors
