Clarke, K. (2011). Porn: From Andy Warhol to X-tube ; [a photographic journey] / [Kevin Clarke]. Gmünder.
Citazione stile Chigago Style (17a edizione)Clarke, Kevin. Porn: From Andy Warhol to X-tube ; [a Photographic Journey] / [Kevin Clarke]. Berlin: Gmünder, 2011.
Citatione MLA (8a ed.)Clarke, Kevin. Porn: From Andy Warhol to X-tube ; [a Photographic Journey] / [Kevin Clarke]. Gmünder, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.