Columbia subject headings:
Georg-Eckert-Institut für Internationale Schulbuchforschung.
Textbooks--Research--Germany.
Harvard subject headings:
Georg-Eckert-Institut für Internationale Schulbuchforschung--History.
Research institutes--Germany--History.
Textbooks--Research--Germany--History.
Princeton subject headings:
Georg-Eckert-Institut für Internationale Schulbuchforschung.
Textbooks--Research--Germany.