APA-viite (7. p.)
Monday, J. C., & Vick, F. B. (2007). Petra's legacy: The South Texas ranching empire of Petra Vela and Mifflin Kenedy. Texas A&M University Press.
Chicago-viite (17. p.)
Monday, Jane Clements, ja Frances Brannen Vick. Petra's Legacy: The South Texas Ranching Empire of Petra Vela and Mifflin Kenedy. College Station: Texas A&M University Press, 2007.
MLA-viite (9. p.)
Monday, Jane Clements, ja Frances Brannen Vick. Petra's Legacy: The South Texas Ranching Empire of Petra Vela and Mifflin Kenedy. Texas A&M University Press, 2007.
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