APA-viite (7. p.)
Frye, J. C., & Leonard, A. B. (1957). Studies of cenozoic geology along eastern margin of Texas High Plains, Armstrong to Howard Counties.
Chicago-viite (17. p.)
Frye, John C., ja A. Byron Leonard. Studies of Cenozoic Geology Along Eastern Margin of Texas High Plains, Armstrong to Howard Counties. Austin, 1957.
MLA-viite (9. p.)
Frye, John C., ja A. Byron Leonard. Studies of Cenozoic Geology Along Eastern Margin of Texas High Plains, Armstrong to Howard Counties. 1957.
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