RT Journal Article SR Electronic T1 Ecological Values in Twentieth-Century Landscape Design: A History and Hermeneutics JF Landscape Journal FD University of Wisconsin Press SP 80 OP 98 DO 10.3368/lj.17.Special_Issue.80 VO 17 IS Special Issue A1 Catherine Howett YR 1998 UL http://lj.uwpress.org/content/17/Special_Issue/80.abstract AB