APA (7th ed.) Citation

Jensen, C. A. T. (1898). Beiträge zur Photometrie des Himmels.

Chicago Style (17th ed.) Citation

Jensen, Christian Albrecht Theodor. Beiträge Zur Photometrie Des Himmels. 1898.

MLA (9th ed.) Citation

Jensen, Christian Albrecht Theodor. Beiträge Zur Photometrie Des Himmels. 1898.

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