Individualizing instruction.
Edited by Nelson B. Henry.
- Chicago, NSSE; distributed by the University of Chicago Press, 1962.
- xiii, 337, vi p. diagrs., tables. 24 cm.
- Yearbook of the National Society for the Study of Education [new ser.] 61st, pt. 1 .
- National Society for the Study of Education. new ser., Yearbook, 61st, pt. 1. .