APA-Zitierstil (7. Ausg.)

Hoffmann, C. (2007). Constant differences: Friedrich Wilhelm Bessel, the concept of the observer in early nineteenth-century practical astronomy and the history of the personal equation.

Chicago-Zitierstil (17. Ausg.)

Hoffmann, Christoph. Constant Differences: Friedrich Wilhelm Bessel, the Concept of the Observer in Early Nineteenth-century Practical Astronomy and the History of the Personal Equation. 2007.

MLA-Zitierstil (9. Ausg.)

Hoffmann, Christoph. Constant Differences: Friedrich Wilhelm Bessel, the Concept of the Observer in Early Nineteenth-century Practical Astronomy and the History of the Personal Equation. 2007.