@online {170, title = {The USGS Landslide Handbook{\textendash} A Guide to Understanding Landslides}, publisher = {USGS}, keywords = {$\#$EducationalResources, $\#$Landslides, $\#$NaturalHazards, $\#$SubjectResources, classroom, curricula, earth science, education, K-12, landslides, lesson plans, natural hazards, schools, standards, teacher resources, teaching}, url = {http://pubs.usgs.gov/circ/1325/} }