Ruinous Graffiti Etched Into National Park's Ancient Rock Arches
(United States of America)Peter Andrew Hart (2016). Ruinous Graffiti Etched Into National Park's Ancient Rock Arches. Huffington Post. 28 April.
Peter Andrew Hart (2016). Ruinous Graffiti Etched Into National Park's Ancient Rock Arches. Huffington Post. 28 April.