(1969). Current European directories: Annotated guide to international, national, city and specialised directories and similar reference works for all countries of Europe. CBD Research Ltd.
Chicago-Zitierstil (17. Ausg.)Current European Directories: Annotated Guide to International, National, City and Specialised Directories and Similar Reference Works for All Countries of Europe. Beckenham: CBD Research Ltd, 1969.
MLA-Zitierstil (9. Ausg.)Current European Directories: Annotated Guide to International, National, City and Specialised Directories and Similar Reference Works for All Countries of Europe. CBD Research Ltd, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.