APA (7th ed.) Citation

Sack, W., & Sack, W. (1911). Das silberne Buch der Familie Sack. Petmecky.

Chicago Style (17th ed.) Citation

Sack, Wilhelm, and Wilhelm Sack. Das Silberne Buch Der Familie Sack. Wiesbaden: Petmecky, 1911.

MLA (8th ed.) Citation

Sack, Wilhelm, and Wilhelm Sack. Das Silberne Buch Der Familie Sack. Petmecky, 1911.

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