Haberkorn, F. (2008). Ricarda Roggan: Creatures of the 20th century. Prestel.
Chicagoスタイル(17版)引用形式Haberkorn, Falk. Ricarda Roggan: Creatures of the 20th Century. Munich [u.a.]: Prestel, 2008.
MLA(8版)引用形式Haberkorn, Falk. Ricarda Roggan: Creatures of the 20th Century. Prestel, 2008.
警告: この引用は必ずしも正確ではありません.