TY  - BOOK
AU  - Irion,Theophil William Henry
TI  - Comprehension difficulties of ninth grade students in the study of literature
SN  - 0404551890
PY  - 1925///
CY  - New York
PB  - Columbia University
KW  - English literature
KW  - Study and teaching
KW  - Educational tests and measurements
N1  - Published also as thesis (Ph. D.), Columbia University, 1925; Bibliography : p. 77-79
ER  -