APA (7th ed.) Citation

Relling, A., & Rudolf, G. H. (1961). Tapferer Engel Butterfly. Moewig.

Chicago Style (17th ed.) Citation

Relling, Armin, and Gerhard H. Rudolf. Tapferer Engel Butterfly. München: Moewig, 1961.

MLA (9th ed.) Citation

Relling, Armin, and Gerhard H. Rudolf. Tapferer Engel Butterfly. Moewig, 1961.

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