TY - RPRT TI - National Park Service Bus Electrification Study: 2020 Report AU - Gilleran, Madeline AU - Kotz, Andrew AU - Eudy, Leslie AU - Kelly, Kay PY - 2021 DO - 10.2172/1768279 UR - https://www.osti.gov/biblio/1768279 ID - 1768279 ER -