APA (7th ed.) Citation

Sowinski, B. (1993). Heinrich Böll. Metzler.

Chicago Style (17th ed.) Citation

Sowinski, Bernhard. Heinrich Böll. Stuttgart [u.a.]: Metzler, 1993.

MLA (9th ed.) Citation

Sowinski, Bernhard. Heinrich Böll. Metzler, 1993.

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