Columbia subject headings:
Harvard subject headings:
Dissertations, Academic--Germany--Bibliography.
Psychologists--Germany--Biography--Dictionaries--German.
Psychology--Germany--Bibliography.
Psychology--Germany--Societies, etc.--Directories.
Psychology--Study and teaching--Germany--History--Chronology.
Princeton subject headings:
Psychology--Germany--History.
Psychology--Germany--Periodicals--Bibliography.
Psychology--Germany--Societies, etc.