TY  - BOOK
AU  - Olson,Willard Clifford
TI  - The measurement of nervous habits in normal children
U1  - 148 
PY  - 1929///]
CY  - Minneapolis
PB  - The University of Minnesota Press
KW  - Education
N1  - "References upon which the inventory of ties is based" : p. 9-10
ER  -