APA (7th ed.) Citation

Achelis, E. C. (1891). Praktische Theologie. Praktische Theologie.

Chicago Style (17th ed.) Citation

Achelis, Ernst Christian. "Praktische Theologie." Praktische Theologie 1891.

MLA (9th ed.) Citation

Achelis, Ernst Christian. "Praktische Theologie." Praktische Theologie, 1891.

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