APA (7th ed.) Citation

Sichelschmidt, G., & Nicolai, F. (1971). Friedrich Nicolai: Geschichte seines Lebens. Nicolai.

Chicago Style (17th ed.) Citation

Sichelschmidt, Gustav, and Friedrich Nicolai. Friedrich Nicolai: Geschichte Seines Lebens. Herford: Nicolai, 1971.

MLA (8th ed.) Citation

Sichelschmidt, Gustav, and Friedrich Nicolai. Friedrich Nicolai: Geschichte Seines Lebens. Nicolai, 1971.

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