APA (7th ed.) Citation

Henkels, W. (1964). Neunundneunzig Bonner Köpfe. Econ-Verl.

Chicago Style (17th ed.) Citation

Henkels, Walter. Neunundneunzig Bonner Köpfe. Düsseldorf: Econ-Verl, 1964.

MLA (9th ed.) Citation

Henkels, Walter. Neunundneunzig Bonner Köpfe. Econ-Verl, 1964.

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