00498nam172200193 4500 2000038000002100032000382150023000702250014000931010018001071050018001258010033001434540039001760350015002150100015002307000018002456070023002636760010002866870008002961 a[Les] PôlesfDidier RootesbLIV aPariscBayard-"Okapi"d1996 a48 p.cill.d29 cm2 aJ'explore1 afrecenggfre a 000 0 aFRbVOHf95347c20000113dBB 1tExploration into the polar regions a2227735023 a2227735023 1aRootesbDavid aRégions polaires a919.8 aJDO