APA (7th ed.) Citation

Obst, F. J. (1980). Schildkröten. Urania-Verl.

Chicago Style (17th ed.) Citation

Obst, Fritz Jürgen. Schildkröten. Jena [u.a.]: Urania-Verl, 1980.

MLA (9th ed.) Citation

Obst, Fritz Jürgen. Schildkröten. Urania-Verl, 1980.

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