APA Citation

Spicker, M. 1., & Lütgen, B. Twenty daily exercises.

Chicago Style Citation

Spicker, Max 1858-1912, and B. Lütgen. Twenty Daily Exercises.

MLA Citation

Spicker, Max 1858-1912, and B. Lütgen. Twenty Daily Exercises.

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