APA (7e ed.) Bronvermelding

Birnbaum, D. (1998). The good, the bad and the ugly: Daniel Birnbaum on porn, photography and Picabia's late paintings. frieze.

Chicago (17e ed.) Bronvermelding

Birnbaum, Daniel. "The Good, the Bad and the Ugly: Daniel Birnbaum on Porn, Photography and Picabia's Late Paintings." Frieze 1998.

MLA (8e ed.) Bronvermelding

Birnbaum, Daniel. "The Good, the Bad and the Ugly: Daniel Birnbaum on Porn, Photography and Picabia's Late Paintings." Frieze, 1998.