Catawissa Tunnel (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Catawissa Tunnel" in English language version.

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books.google.com

The Top 20 Plan (PDF), Susquehanna River Basin Commission, p. 7, archived from the original (PDF) on March 4, 2016, retrieved October 17, 2014

Pennsylvania Environmental Council (December 9, 2010), Catawissa Creek Watershed Rivers Conservation Plan (PDF), archived from the original (PDF) on September 23, 2015, retrieved October 17, 2014

Pennsylvania Environmental Council (December 9, 2010), Catawissa Creek Watershed Rivers Conservation Plan (PDF), archived from the original (PDF) on September 23, 2015, retrieved October 17, 2014
Pennsylvania Department of Environmental Protection (March 1, 2003), CATAWISSA CREEK WATERSHED TMDL Carbon, Columbia, Luzerne, and Schuylkill Counties (PDF), archived from the original (PDF) on October 19, 2014, retrieved October 17, 2014
Catawissa Creek Watershed Restoration Plan Update Addressing the TMDL (PDF), archived from the original (PDF) on November 9, 2013, retrieved October 17, 2014
The Top 20 Plan (PDF), Susquehanna River Basin Commission, p. 7, archived from the original (PDF) on March 4, 2016, retrieved October 17, 2014