R. Andrus

发表

Personality change in an older age group.

R. Andrus, 1955, Geriatrics.

THE EFFECT OF NURSERY SCHOOL TRAINING: INSECURITY FEELINGS

E. L. Horowitz, R. Andrus, 1938 .

The preliminary experiment.

R. Andrus, 2022 .

When Should Children Go to School

R. Andrus, 1949 .

A tentative inventory of the habits of children from two to four years of age

R. Andrus, 1924 .