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56. Armstrong Yale Public content 1923. 2011-12-12T21:37:07Z. 2022-03-29T20:40:41Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Texas.
57. Armstrong, Tex Yale Public content 1959. 2011-12-12T21:37:07Z. 2022-03-29T20:40:41Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Texas.
58. Asher & Adams' Texas : eastern portion Yale Public content 1878. 2002-06-01T04:00:00Z. 2017-07-04T21:13:35Z. Asher & Adams. Asher & Adams. English. Public. Texas.
59. Asher & Adams' Texas : western portion Yale Public content 1878. 2002-06-01T04:00:00Z. 2017-07-04T21:13:35Z. Asher & Adams. Asher & Adams. English. Public. Texas.
60. Aspermont, Tex Yale Public content 1931. 2011-12-12T21:37:07Z. 2022-03-29T20:40:41Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Texas.