APA (7th ed.) Citation

Koch, J. (1991). Zu einigen astronomischen 'Diaries'.

Chicago Style (17th ed.) Citation

Koch, J. Zu Einigen Astronomischen 'Diaries'. 1991.

MLA (8th ed.) Citation

Koch, J. Zu Einigen Astronomischen 'Diaries'. 1991.

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