APA (7th ed.) Citation

Schellenberg, W., & Petersen, G. (1959). Memoiren. Hannes Jähn.

Chicago Style (17th ed.) Citation

Schellenberg, Walter, and Gita Petersen. Memoiren. Lengerich (Westfallen): Hannes Jähn, 1959.

MLA (9th ed.) Citation

Schellenberg, Walter, and Gita Petersen. Memoiren. Hannes Jähn, 1959.

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