APA (7th ed.) Citation

Petzoldt, R., & Crass, E. (1963). Richard Wagner: Sein Leben in Bildern. Verlag Enzyklopädie.

Chicago Style (17th ed.) Citation

Petzoldt, Richard, and Eduard Crass. Richard Wagner: Sein Leben in Bildern. Leipzig: Verlag Enzyklopädie, 1963.

MLA (8th ed.) Citation

Petzoldt, Richard, and Eduard Crass. Richard Wagner: Sein Leben in Bildern. Verlag Enzyklopädie, 1963.

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