Sterling, R. S., Kilman, E. W., & Carleton, D. E. (2007). Ross Sterling, Texan: A memoir by the founder of Humble Oil and Refining Company. University of Texas Press.
Lua i Stíl Chicago (17ú heag.)Sterling, Ross S., Edward W. Kilman, agus Don E. Carleton. Ross Sterling, Texan: A Memoir by the Founder of Humble Oil and Refining Company. Austin: University of Texas Press, 2007.
Lua MLA (9ú heag.)Sterling, Ross S., et al. Ross Sterling, Texan: A Memoir by the Founder of Humble Oil and Refining Company. University of Texas Press, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.