APA (7th ed.) Citation

Gmelin, O. (1930). Das neue Reich: Roman d. Völkerwanderung. Diederichs.

Chicago Style (17th ed.) Citation

Gmelin, Otto. Das Neue Reich: Roman D. Völkerwanderung. Jena: Diederichs, 1930.

MLA (9th ed.) Citation

Gmelin, Otto. Das Neue Reich: Roman D. Völkerwanderung. Diederichs, 1930.

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