Patrick، Andrew P. (2017). "Birth of the Bluegrass: Ecological Transformations in Central Kentucky to 1810". The Register of the Kentucky Historical Society. ج. 115 ع. 2: 155–182. DOI:10.1353/khs.2017.0049. S2CID:133557743.
Patrick، Andrew P. (2017). "Birth of the Bluegrass: Ecological Transformations in Central Kentucky to 1810". The Register of the Kentucky Historical Society. ج. 115 ع. 2: 155–182. DOI:10.1353/khs.2017.0049. S2CID:133557743.