APA
Howard S., . (2018). Answering borehole stability challenges in difficult shale. : .
Chicago
Howard Siv, . 2018. Answering borehole stability challenges in difficult shale. : .
Harvard
Howard S., . (2018). Answering borehole stability challenges in difficult shale. : .
MLA
Howard Siv, . Answering borehole stability challenges in difficult shale. : . 2018.
