Harms, U., Koeberl, C., & Zoback, M. D. (2007). Continental scientific drilling: A decade of progress and challenges for the future. Berlin : Springer.
Čikaški stil citiranja (17. izdanje)Harms, Ulrich, Christian Koeberl, i Mark D. Zoback. Continental Scientific Drilling: A Decade of Progress and Challenges for the Future. Berlin : Springer, 2007.
MLA način citiranja (9. izdanje)Harms, Ulrich, et al. Continental Scientific Drilling: A Decade of Progress and Challenges for the Future. Berlin : Springer, 2007.
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