APA (7th ed.) Citation

Hirt, C., Burki, B., & Tziavos, I. (2003). The Digital Zenith Camera - A New High-Precision and Economic Astrogeodetic Observation System for Real-Time Measurement of Deflections of the Vertical. Editions Ziti.

Chicago Style (17th ed.) Citation

Hirt, Christian, B. Burki, and I. Tziavos. The Digital Zenith Camera - A New High-Precision and Economic Astrogeodetic Observation System for Real-Time Measurement of Deflections of the Vertical. Editions Ziti, 2003.

MLA (9th ed.) Citation

Hirt, Christian, et al. The Digital Zenith Camera - A New High-Precision and Economic Astrogeodetic Observation System for Real-Time Measurement of Deflections of the Vertical. Editions Ziti, 2003.