00848nam0-22003251i-450-990000558630403321200010100 87201 289 1000055863FED01000055863(Aleph)000055863FED0100005586320001010d--------km-y0itay50------baitay-------001yyFloating drillingequipment and its useRiley SheffieldHoustonGulf Publishing198023 cm257 p.Practical technology , 2627'.98Sheffield,Riley29809ITUNINARICAUNIMARCBK99000055863040332105 68 1682688DININDININFloating drilling319815UNINAING01