Columbia subject headings:
Biederstein Verlag--Bibliography.
Munich (Germany)--Imprints.
Verlag C.H. Beck--Bibliography.
Verlag Franz Vahlen--Bibliography.
Harvard subject headings:
Biederstein Verlag--Bibliography.
Munich (Germany)--Imprints.
Verlag C.H. Beck--Bibliography.
Verlag Franz Vahlen--Bibliography.
Princeton subject headings: