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.
Chicago-viite (17. p.)Sterling, Ross S., Edward W. Kilman, ja Don E. Carleton. Ross Sterling, Texan: A Memoir by the Founder of Humble Oil and Refining Company. Austin: University of Texas Press, 2007.
MLA-viite (9. p.)Sterling, Ross S., et al. Ross Sterling, Texan: A Memoir by the Founder of Humble Oil and Refining Company. University of Texas Press, 2007.
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