Cita APA (7a ed.)

(1973). International bibliography of directories =: Internationale Bibliographie der Fachadressbücher (5th rev. ed.). R.R. Bowker ; Verlag Dokumentation.

Cita Chicago Style (17a ed.)

International Bibliography of Directories =: Internationale Bibliographie Der Fachadressbücher. 5th rev. ed. New York : Pullach/München: R.R. Bowker ; Verlag Dokumentation, 1973.

Cita MLA (9a ed.)

International Bibliography of Directories =: Internationale Bibliographie Der Fachadressbücher. 5th rev. ed. R.R. Bowker ; Verlag Dokumentation, 1973.