Road map of Lamar County, Texas / Wilder and O'Neal, engineers, Houston, Texas, Mar. 16, 1918 ; drawn by B.G.S. ; checked by T.A.P.
MLA
Road Map of Lamar County, Texas / Wilder and O'Neal, Engineers, Houston, Texas, Mar. 16, 1918 ; Drawn by B.G.S. ; Checked by T.A.P. Texas Highway Dept.?], 1918. https://collections.library.yale.edu/catalog/15827485.
APA, 6th edition
Road map of Lamar County, Texas / Wilder and O'Neal, engineers, Houston, Texas, Mar. 16, 1918 ; drawn by B.G.S. ; checked by T.A.P. (1918). [Maps]. Texas Highway Dept.?], https://collections.library.yale.edu/catalog/15827485.
