APA (7th ed.) Citation

Texas State Historical Survey Committee & Texas Historical Foundation. (1971). Guide to official Texas historical markers. [Texas Historical Foundation].

Chicago Style (17th ed.) Citation

Texas State Historical Survey Committee and Texas Historical Foundation. Guide to Official Texas Historical Markers. [Austin?]: [Texas Historical Foundation], 1971.

MLA (9th ed.) Citation

Texas State Historical Survey Committee and Texas Historical Foundation. Guide to Official Texas Historical Markers. [Texas Historical Foundation], 1971.