Hill, R. W. (2010). the Dangers of Petrification, or "The Work of Art and the Ages of Mineral Reproduction". Animism : Volume I.
Citazione stile Chigago Style (17a edizione)Hill, Richard William. "The Dangers of Petrification, or "The Work of Art and the Ages of Mineral Reproduction"." Animism : Volume I 2010.
Citatione MLA (8a ed.)Hill, Richard William. "The Dangers of Petrification, or "The Work of Art and the Ages of Mineral Reproduction"." Animism : Volume I, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.