found: His Probing the earth, 1977.
found: Achilles Rizzoli, 1997:CIP t.p. (John Beardsley) data sheet (b. 1952)
found: Designing wildlife habitats, c2013:ECIP t.p. (John Beardsley; Dumbarton Oaks Research Library and Collection)
found: Art through time, a global view, viewed Aug. 22, 2012at Expert biographies (John Beardsley, Ph.D.; director of garden and landscape studies, Dumbarton Oaks, Washington, D.C.; author of Gardens of revelation, and of Earthworks and beyond)
found: Gardens of revelation, viewed Aug. 22, 2012(Beardsley, John Michael)
found: Dumbarton Oaks website, viewed March 27, 2019(John Beardsley is director of garden and landscape studies at Dumbarton Oaks, Washington, D.C. He is also art historian, with a PhD from the University of Virginia; author of numerous books on contemporary art and design; and curator in numerous museums. He has taught in departments of landscape architecture at the University of Virginia, the University of Pennsylvania, and Harvard University. His email address is [email protected]) - https://www.doaks.org/about/leadership/john-beardsley