APA (7th ed.) Citation

(1969). Frankfurt, Rhein-Main-Gebiet. Polyglott-Verl.

Chicago Style (17th ed.) Citation

Frankfurt, Rhein-Main-Gebiet. Köln: Polyglott-Verl, 1969.

MLA (9th ed.) Citation

Frankfurt, Rhein-Main-Gebiet. Polyglott-Verl, 1969.

Warning: These citations may not always be 100% accurate.