Cita APA (7a ed.)

(2001). Gisla Burkhardt: Underfoot in New York ; Manhole-Cover-Frottagen.

Cita Chicago Style (17a ed.)

Gisla Burkhardt: Underfoot in New York ; Manhole-Cover-Frottagen. Berlin, 2001.

Cita MLA (8a ed.)

Gisla Burkhardt: Underfoot in New York ; Manhole-Cover-Frottagen. 2001.