Mental growth curve of normal and superior children studied by means of consecutive intelligence examinations,
Baldwin, Bird T. (Bird Thomas), 1875-1928.
Stecher, Lorle I. (Lorle Ida), 1891-1980, joint author.
text
Iowa City, The University
[1922]
eng
"References": p. 60-61.
Educational tests and measurements.
Child development.
Psychophysiology.
Also available in digital form.
http://hdl.loc.gov/loc.gdc/scd0001.00213386426