TY - RPRT TI - Computer implemented land cover classification using LANDSAT MSS digital data: A cooperative research project between the National Park Service and NASA. 3: Vegetation and other land cover analysis of Shenandoah National Park AU - Cibula, W. G. PY - 1981 UR - https://ntrs.nasa.gov/citations/19830021502 ID - 19830021502 ER -