Koenig, T. (1988). Fotografie Biennale Rotterdam: Questioning Europe - Reinterpretations within Photography. Kunstforum.
Cita Chicago (17th ed.)Koenig, Thilo. "Fotografie Biennale Rotterdam: Questioning Europe - Reinterpretations Within Photography." Kunstforum 1988.
Cita MLA (8th ed.)Koenig, Thilo. "Fotografie Biennale Rotterdam: Questioning Europe - Reinterpretations Within Photography." Kunstforum, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.