1. Bittman, R. (2001) The California Natural Diversity Database: A Natural Heritage Program for Rare Species and Vegetation. Fremnotia, 29: 3-4 https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=116400&inline
2. California Department of Fish and Wildlife (2016) Instream Flow Program. https://www.wildlife.ca.gov/Conservation/Watersheds/Instream-Flow
3. CEDEN (2016) California Data Exchange Network. http://ceden.org/about_us.shtml
4. CRAM Wetlands (n.d). What is the California Rapid Assessment Method (CRAM)? http://www.cramwetlands.org/sites/default/files/2008-11_Calif%20CRAM%20Factsheet%20Nov10%20HiRes.pdf
5. Forest Inventory and Analysis National Program (2015) FIA Library. http://www.fia.fs.fed.us/library/
6. Humboldt State University (2010) Library- Special Collections – Humboldt room. California Environmental Information Sources. http://library.humboldt.edu/humco/holdings/Sathrum/CalEnv.html
7. Levien, M.L., Schwind, B.D., Fischer, C.S., Rosenberg, M. (n.d) California Land Cover Mapping and Monitoring Program: A Cooperative. http://www.fs.fed.us/r5/rsl/publications/rsmapping/ca-landcover-cooperative.pdf
8. Pimlott, K., Gilless, J. K., & Laird, J. (2014) Forest Practice Rules Implementation and Effectiveness Monitoring (FORPRIEM ) Program 2008 through 2013. http://bofdata.fire.ca.gov/board_committees/monitoring_study_group/msg_monitoring_reports
9. San Francisco Bay Estuary (2016) California Rapid Assessment Method (CRAM) http://www.cramwetlands.org/
10. SWAMP History and Organization (2016). http://www.waterboards.ca.gov/water_issues/programs/swamp/
11. UC Davis Forest Biology Research Center (2015) http://forestbiology.ucdavis.edu/