APA-čujuhus (7. p.)
Clark, W. W., & Cooke, G. (2012). Global energy innovation: Why America must lead. Praeger.
Chicago-čujuhus (17. p.)
Clark, Woodrow W., juo Grant Cooke. Global Energy Innovation: Why America Must Lead. Santa Barbara, Calif.: Praeger, 2012.
MLA-čujuhus (9. p.)
Clark, Woodrow W., juo Grant Cooke. Global Energy Innovation: Why America Must Lead. Praeger, 2012.
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