APA (7th ed.) Citation

Hardt, W. C., Sheridan, J., & De Boe, D. C. (1989). Twentienth-century Texas: A high school Texas studies curriculum guide. Published by the Texas State Historical Association in cooperation with the Center for Studies in Texas History, The University of Texas at Austin.

Chicago Style (17th ed.) Citation

Hardt, William C., Jack Sheridan, and David C. De Boe. Twentienth-century Texas: A High School Texas Studies Curriculum Guide. [Austin, Tex.?]: Published by the Texas State Historical Association in cooperation with the Center for Studies in Texas History, The University of Texas at Austin, 1989.

MLA (9th ed.) Citation

Hardt, William C., et al. Twentienth-century Texas: A High School Texas Studies Curriculum Guide. Published by the Texas State Historical Association in cooperation with the Center for Studies in Texas History, The University of Texas at Austin, 1989.