PT - JOURNAL ARTICLE AU - Powers, Joyce Ann TI - Learning by Doing AID - 10.3368/er.2.2.55 DP - 1984 Dec 21 TA - Ecological Restoration PG - 55--56 VI - 2 IP - 2 4099 - http://er.uwpress.org/content/2/2/55.short 4100 - http://er.uwpress.org/content/2/2/55.full