Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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