APA (7th ed.) Citation

Apel, U., & Apel, U. (1989). A - I. Saur.

Chicago Style (17th ed.) Citation

Apel, Ursula, and Ursula Apel. A - I. München [u.a.]: Saur, 1989.

MLA (8th ed.) Citation

Apel, Ursula, and Ursula Apel. A - I. Saur, 1989.

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