APA (7th ed.) Citation

Roloff, H. (1991). Al -. Frommann-Holzboog.

Chicago Style (17th ed.) Citation

Roloff, Hans-Gert. Al -. [Stuttgart-Bad Cannstatt]: Frommann-Holzboog, 1991.

MLA (8th ed.) Citation

Roloff, Hans-Gert. Al -. Frommann-Holzboog, 1991.

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