APA (7th ed.) Citation

Rüttiman, B., Fries, O., & Müller, K. (1971). Lucerne: A little city guide ([4th ed.].). Official Tourist Office.

Chicago Style (17th ed.) Citation

Rüttiman, Bruno, Othmar Fries, and Kuno Müller. Lucerne: A Little City Guide. [4th ed.]. Lucerne: Official Tourist Office, 1971.

MLA (9th ed.) Citation

Rüttiman, Bruno, et al. Lucerne: A Little City Guide. [4th ed.]. Official Tourist Office, 1971.