Fricke, H., & Pierick, K. (1990). Verkehrssicherung. Teubner.
Chicago Style (17th ed.) CitationFricke, Hans, and Klaus Pierick. Verkehrssicherung. Stuttgart: Teubner, 1990.
MLA (9th ed.) CitationFricke, Hans, and Klaus Pierick. Verkehrssicherung. Teubner, 1990.
Warning: These citations may not always be 100% accurate.