APA (7th ed.) Citation

Keller, F. E. (1929). "Hip Hip Hurra" (6. Aufl.). Straube.

Chicago Style (17th ed.) Citation

Keller, Friedrich Eduard. "Hip Hip Hurra". 6. Aufl. Berlin: Straube, 1929.

MLA (8th ed.) Citation

Keller, Friedrich Eduard. "Hip Hip Hurra". 6. Aufl. Straube, 1929.

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