TY  - BOOK
AU  - Waterink,J.
TI  - Keur uit de verspreide geschriften van prof. dr. J. Waterink
PY  - 1961///
CY  - Groningen, Netherlands
PB  - Wolters
KW  - Education
KW  - Philosophy
KW  - Educational psychology
N1  - Includes bibliographical references
ER  -