The resemblance of siblings in intelligence and achievement.
Series: Contributions to education -- no.186.
Publisher: Teachers College, Columbia University; AMS Press; A M S Press, Incorporated
Published: 1972
Place of publication: New York; [New York
Number of pages: 65
Subjects: Brothers and sisters; Heredity; Intelligence tests
Notes: Reprint of the 1925 ed., issued in series: Teachers Collelge, Columbia University.

Contributions to education, no.186.

Originally presented as the author's thesis, Columbia.

Bibliography: p.64-65.