APA (7th ed.) Citation

Pool, W. C., Triggs, E., & Wren, L. (1975). A historical atlas of Texas. Encino Press.

Chicago Style (17th ed.) Citation

Pool, William C., Edward Triggs, and Lance Wren. A Historical Atlas of Texas. Austin: Encino Press, 1975.

MLA (9th ed.) Citation

Pool, William C., et al. A Historical Atlas of Texas. Encino Press, 1975.