WHALEN, B. (1981). Workbook for a primer of oilwell service and workover. Association of oilwell servicing contractors.
Chicago-referens (17:e uppl.)WHALEN, Bruce. Workbook for a Primer of Oilwell Service and Workover. Association of oilwell servicing contractors, 1981.
MLA-referens (8:e uppl.)WHALEN, Bruce. Workbook for a Primer of Oilwell Service and Workover. Association of oilwell servicing contractors, 1981.
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