APA (7th ed.) Citation

Bushnell, T. M., Hawker, H. W., & Pratapas, D. B. (1923). Soil survey of Erath County, Texas. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Bushnell, T. M., H. W. Hawker, and D. B. Pratapas. Soil Survey of Erath County, Texas. Washington: Govt. Print. Off, 1923.

MLA (9th ed.) Citation

Bushnell, T. M., et al. Soil Survey of Erath County, Texas. Govt. Print. Off, 1923.