TY - RPRT TI - Evaluation of a Single-Beam Sonar System to Map Seagrass at Two Sites in Northern Puget Sound, Washington AU - Andrew W. Stevens AU - Jessica R. Lacy AU - David P. Finlayson AU - Guy Gelfenbaum PY - 2008 DO - 10.3133/sir20085009 UR - https://pubs.usgs.gov/publication/sir20085009 ID - sir20085009 ER -